Top 15 Best Air Filter Ford Focus ST for Ultimate Boost!
Choosing the right air filter for your Ford Focus ST can make a noticeable difference in your car’s performance and engine health. Dust, pollen, and other particles constantly enter the engine area, which can reduce efficiency over time.
This review focuses on air filters designed specifically for the Ford Focus ST, helping drivers improve airflow while keeping contaminants out. Whether you want better fuel economy, easier maintenance, or simply cleaner air intake, these filters offer practical benefits without complicated installation.
In the following sections, you will find a comparison of reliable products, key features to look for, and tips to choose the right filter for your needs. The goal is to guide you toward a choice that fits your car and driving style.
Discover Top Picks to Keep Your Focus ST’s Air Pure and Performance Sharp
| Image | Product | Price |
|---|---|---|
Our Top Picks 1  | Green Filter 7159 Green High Performance Air Filter | Check Price |
Our Top Picks 2  | High Performance Air Filter Intake Compatible with Ford Focus 2009-2018 | Check Price |
Our Top Picks 3  | Engine Air Filter Compatible with Ford Focus ST RS 2009-2018 | Check Price |
1. Green Filter 7159 Green High Performance Air Filter
The Green Filter 7159 Green High Performance Air Filter enhances engine efficiency and longevity by providing superior airflow. Designed with eco-friendly materials, it offers a sustainable upgrade over standard filters. Its durable construction ensures extended use while maintaining optimal engine protection.
Its durable construction ensures extended use while maintaining optimal engine protection.
Thanks to its deep pleated fabric, this air filter captures more contaminants without compromising airflow. Unlike disposable filters, it is washable and reusable, reducing waste and replacement frequency.
Crafted for the Ford Focus ST and similar models, the Green Filter 7159 promotes cleaner air intake, enhancing engine responsiveness and fuel efficiency. Its material design facilitates better airflow, allowing the engine to breathe easier and perform better under various conditions. The durability of the deep pleated fabric supports consistent performance over time, requiring fewer replacements.
Installation is straightforward, fitting the OEM specifications precisely to reduce hassle. Compared to conventional paper filters, this washable filter retains its filtration capabilities even after multiple cleanings.
Overall, this air filter excels in delivering a combination of enhanced filtration, eco-conscious design, and user convenience. It’s a practical choice for those focused on engine health and environmental responsibility without compromising on quality or functionality.
Pros
- High airflow capacity for improved engine performance
- Durable, deep pleated fabric extends filter life
- Washable and reusable design reduces waste and costs
Cons
- Might require regular cleaning to maintain peak performance
Green Filter’s 7159 air filter stands out by blending eco-friendly and high-performance features in one unit. Its ability to be washed and reused gives it an advantage over disposable filters, making it a smart choice for sustainable vehicle care. Below is a specification overview for reference.
Below is a specification overview for reference.
| Specification | Details |
|---|---|
| Brand Name | Green Filter |
| Model Number | 7159 |
| OEM Equivalent Part Number | 7159 |
| Manufacturer Part Number | 7159 |
| Global Trade Identification Number | 00836217005459 |
| Included Components | Green Filter High Performance Factory Replacement Air Filter 7159 |
| Item Weight | 0.01 Ounces |
This air filter fits those who are looking for an eco-friendly option without sacrifice in vehicle performance. It blends well with daily driving demands and occasional spirited drives, providing reliable filtration and airflow. For drivers prioritizing filter longevity and environmental impact, this filter is a considerable upgrade from traditional paper models.
For drivers prioritizing filter longevity and environmental impact, this filter is a considerable upgrade from traditional paper models.
2. High Performance Air Filter Intake Compatible with Ford Focus 2009-2018
Enhance your Ford Focus with a high-performance air filter designed for efficient airflow and superior filtration. This KNSPEC air filter intake fits various Ford models from 2009 to 2018, improving engine breathing and turbocharging sounds with ease.
The reusable design offers a cost-effective upgrade, featuring a washable three-layer mesh that maintains airflow without needing oil. Installation is straightforward, requiring no modifications and taking just minutes.
The KNSPEC High Performance Air Filter Intake provides an immediate boost in intake volume. Its increased airflow enhances engine responsiveness while ensuring clean air reaches the combustion chamber.
5 Ford Focus, Focus ST, Focus RS, and other selected models, it covers several engine sizes from 0L to
3L.
Constructed from an advanced triple-layer material, this air filter combines durability with easy maintenance. The oil-free design means it won’t interfere with your vehicle’s airflow sensor, preserving optimal engine performance. Simply rinse with water and let it air dry to reuse for up to 50,000 miles per cleaning and a total lifespan exceeding 200,000 miles.
Simply rinse with water and let it air dry to reuse for up to 50,000 miles per cleaning and a total lifespan exceeding 200,000 miles.
Installation requires no modifications and can be completed in about five minutes using the included wrench. The intake area expands after mounting, allowing turbo fans to draw more air, which produces a clearer turbocharger sound.
Ideal for drivers seeking a reliable and cost-saving air filter upgrade without sacrificing filtration quality.
Pros
- Enhanced airflow increases engine responsiveness and turbo sound
- Reusable and washable without oil, preventing airflow sensor issues
- Simple bolt-on installation, no vehicle modifications needed
Cons
- Fit verification required to avoid compatibility issues
This air filter intake combines functionality and durability, offering Ford Focus owners a practical way to improve performance. Its maintenance-friendly design and quick installation make it a worthwhile upgrade over many standard filters. Below is a summary of specifications to assist with your decision.
| Feature | Details |
|---|---|
| Brand | KNSPEC |
| Compatibility | Ford Focus 2009-2018, Focus ST 2012-2018, Focus RS 2015-2018, plus select Ford Escape, Transit Connect, MKC models |
| Material | 3-layer washable mesh with special aluminum coating |
| Installation | Bolt-on, no modifications, includes wrench |
| Reusability | Up to 50,000 miles between washes, over 200,000 miles total lifespan |
| Filter Type | Dry air filter, no oil needed |
When compared to standard paper filters, this high-performance unit offers longer service intervals and better air flow without sacrificing filtration. It fits several Ford models across various engine sizes, providing versatility.
3. Engine Air Filter Compatible with Ford Focus ST RS 2009-2018
Upgrade your Ford Focus ST’s performance with the Engine Air Filter Compatible with Ford Focus ST RS 2009- Designed to boost turbo sound and enhance throttle response, this filter offers a powerful driving experience while maintaining excellent filtration quality.
Crafted to last, the washable and reusable dry air filter allows hassle-free maintenance without the need for oil sprays. Its unique dual-flow design lets you switch between louder turbo sounds or a quieter ride, adapting easily to your driving preference.
The STRAUTOS Engine Air Filter is engineered to deliver enhanced performance and durability. Its key feature is the washable and reusable dry filter media that flows more air without compromising filtration. This technology extends the filter’s lifespan to over 200,000 miles with simple water cleaning and natural drying.
The absence of oil ensures it won’t interfere with the air flow sensor.
Another innovative aspect is the two flow modes: opening the filter’s end cover amplifies turbo sound and increases air intake for quicker throttle response. Closing the end cap softens the turbo noise and promotes smoother engine operation.
This versatility caters to drivers who appreciate both performance and comfort.
Installation is straightforward with the provided hose clamp and tool, making upgrades accessible for both daily drivers and those seeking modest performance gains. Its compatibility extends beyond Ford Focus ST to models such as the Focus RS, Escape, Kuga, C-Max, and select Volvo and Mazda vehicles.
The build quality promises reliability for long-term use, giving excellent value for those investing in engine efficiency and sound enhancement.
Pros
- Washable and reusable dry filter maintains airflow and filtration.
- Dual-flow modes allow adjustable turbo sound and throttle response.
- Wide compatibility across multiple Ford, Volvo, and Mazda models.
Cons
- Some users may prefer an oil-coated filter for additional dust trapping.
This air filter stands out for balancing enhanced engine airflow with easy maintenance. Its dual-mode feature offers customization seldom found in comparable filters, making it a versatile choice for Ford Focus ST owners. Perfect for those who want a subtle boost in sound and performance without complex setups.
Perfect for those who want a subtle boost in sound and performance without complex setups.
| Specification | Details |
|---|---|
| Brand Name | STRAUTOS |
| Model Number | 09/18FocusAF-CFO |
| Manufacturer Part Number | SSAAF241116003-SA |
| Included Components | 1 Air Filter, 1 Hose Clamp, 1 Installation Tool |
| Compatible Vehicles | Ford Focus (2009-2018), Ford Focus ST (2012-2018), Ford Focus RS (2015-2018), and others |
| Filter Type | Washable Dry Air Filter |
| Filter Lifespan | Over 200,000 miles |
From personal experience, this air filter is a reliable upgrade for those wanting enhanced throttle feel and turbo sounds without hassle. Its reusable nature adds convenience and cost-saving benefits. The dual-mode airflow feature particularly impressed me, offering flexibility tailored to driving conditions and mood.
The dual-mode airflow feature particularly impressed me, offering flexibility tailored to driving conditions and mood.
4. High Performance Air Filter Intake Compatible With 2009-2018 Ford Focus
Enhance your Ford Focus driving experience with a high-performance air filter designed specifically for 2009-2018 models, including ST and RS variants. This air filter improves airflow while maintaining exceptional filtration, allowing your engine to breathe easier and perform better.
Durability meets advanced engineering in this washable and reusable dry air filter that requires no oiling. Its dual flow mode option lets drivers choose between enhanced turbo sounds or quieter engine operation, adapting to your driving preferences seamlessly.
The High Performance Air Filter Intake fits a wide range of Ford vehicles beyond the Focus, including the Escape, Transit Connect, and MKC models with various engine sizes. Designed to flow more air without sacrificing filtration efficiency, it supports engine life for over 200,000 miles with just simple rinsing and drying between uses.
Installation is straightforward, requiring only removal of the original filter and securing this unit with the included hose clamp. The design enhances turbo sound clarity and throttle response, offering drivers a more engaging and responsive drive.
This filter’s durable construction resists wear and maintains consistent performance without affecting the airflow sensor, making routine maintenance hassle-free. Its dry design eliminates messy oil spray, ensuring your engine running smoothly and cleanly.
Ideal for Ford owners seeking a dependable upgrade, it balances quality, ease of use, and performance gains effectively. Compared to standard replacement filters, this model provides enhanced engine sound feedback and a longer lifespan, delivering strong value for everyday driving needs.
Pros
- Washable, reusable, and requires no oiling
- Dual airflow settings for customizable turbo sound and performance
- Simple installation with secure hose clamp included
Cons
- Turbo sound may be louder than stock when flow mode is open
The STRECOS High Performance Air Filter blends durability, functionality, and user-friendly features into one package tailored for select Ford models. Its unique dual-mode airflow and maintenance ease make it stand out from conventional options. While louder turbo sounds may not suit everyone, drivers seeking additional engine feedback will appreciate the difference.
While louder turbo sounds may not suit everyone, drivers seeking additional engine feedback will appreciate the difference.
| Specification | Details |
|---|---|
| Brand | STRECOS |
| Model Number | STR-FOCUS-003 |
| Compatible Vehicles | 2009-2018 Ford Focus, Focus ST (2012-2018), Focus RS (2015-2018), 2013-2019 Ford Escape, 2014-2016 Transit Connect, 2015-2019 MKC |
| Engine Fitment | 1.0L, 1.5L, 1.6L, 2.0L, 2.3L models |
| Type | Dry, washable air filter |
| Special Features | Dual flow modes, no oil required, improves turbo sound and throttle response |
| Installation | Simple removal and secure with included hose clamp |
| Filter Life | Up to 50,000 miles between cleanings, total lifespan over 200,000 miles |
From my experience, this air filter represents a solid upgrade for Ford Focus owners who value both performance and ease of maintenance. Its balance of airflow improvement and filtration offers peace of mind while enhancing engine responsiveness and sound.
The option to switch airflow modes adds a layer of personalization not typically found in similar products.
5. A-Premium Engine Air Filter Compatible with Ford Escape, Focus, Transit
Maintain your Ford Focus ST’s engine health effortlessly with the A-Premium Engine Air Filter. Designed to deliver precise filtration and optimal airflow, it supports your vehicle’s performance by protecting the engine from harmful debris and contaminants.
This air filter fits multiple Ford models, including the Focus and Transit Connect, ensuring versatile compatibility. Precision-built for durability, it helps keep your engine running smoothly and efficiently day after day.
Crafted with fine filtration media, the A-Premium Engine Air Filter captures dust, dirt, and other particles without blocking necessary airflow. The balanced design improves combustion efficiency while preventing damage caused by contaminants. Its tailored fit guarantees easy replacement, matching OEM specifications for a seamless upgrade.
Its tailored fit guarantees easy replacement, matching OEM specifications for a seamless upgrade.
The non-washable and non-reusable design ensures peak efficiency during its service life. Vehicle owners will appreciate consistent engine performance gains alongside reduced air intake restrictions.
Recommended for yearly or 12,000-mile replacement, this filter safeguards long-term engine health without hassle.
Suitable for Ford Escape, Focus, Transit Connect, and even Lincoln MKC models, it provides a reliable solution for various configurations. Compared to standard filters, it offers enhanced air purity and engine responsiveness, making it an excellent choice for daily drivers wanting dependable maintenance.
Pros
- Superior filtering material captures fine debris effectively.
- Custom fit for multiple Ford and Lincoln models for easy installation.
- Enhances engine performance by promoting better airflow.
Cons
- Not washable or reusable; requires periodic replacement.
The A-Premium Engine Air Filter stands out for its combination of precise fitment and dependable filtration performance. Its ability to maintain clean air intake can help extend engine life and improve fuel efficiency over time.
The easy swap process is practical for anyone performing routine maintenance.
| Specification | Details |
|---|---|
| Compatible Vehicles | Ford Escape (2013-2019), Focus (2012-2018), Transit Connect (2014-2016), Lincoln MKC (2015-2019) |
| OEM Reference Numbers | CA11114, 7M519601AC, CV6Z9601A, AF6908, A6908, PA6149, A36149 |
| Dimensions | Height: 8.27 inches; Top Diameter: 6.16 inches; Bottom Diameter: 5.94 inches |
| Material | Fine filtration media |
| Reusable | No |
| Package Quantity | 1 |
In practice, this air filter balances filtration efficiency with airflow needs expertly. For vehicle owners seeking a maintenance part that preserves engine integrity without complexity, it’s a dependable choice. Its compatibility range and performance improvements make it a practical addition to your vehicle care routine.
Its compatibility range and performance improvements make it a practical addition to your vehicle care routine.
6. DNA Motoring AFPN-228-RD Clean Air Washable Drop In Panel Air
Enhance your vehicle’s efficiency and engine health with the DNA Motoring AFPN-228-RD Clean Air Washable Drop In Panel Air Filter. Designed for select Ford models, this washable air filter ensures your engine receives high-quality, clean air for peak performance.
Its durable construction and easy maintenance make it a smart upgrade for drivers seeking improved horsepower and fuel economy. Reusable and simple to clean, it offers long-lasting benefits without frequent replacements.
The DNA Motoring air filter fits a range of Ford vehicles including the Escape, Focus, Transit Connect, and MKC with engine sizes from 0L to
3L. Its multi-layer cotton gauze fibers trap contaminants while allowing maximum airflow, contributing to enhanced engine responsiveness and acceleration. This washable design supports repeated use up to 50,000 miles before cleaning is necessary, making it both cost-effective and eco-friendly.
Installation requires professional assistance for precise fitting, ensuring compatibility with vehicle electronics and maintaining original equipment standards. The filter’s robust build quality provides durability under varying driving conditions and helps maintain optimal combustion efficiency. It is a suitable choice for owners aiming to boost performance and improve miles per gallon without compromising engine safety or reliability.
It is a suitable choice for owners aiming to boost performance and improve miles per gallon without compromising engine safety or reliability.
Pros
- Washable and reusable, reducing replacement frequency.
- Improves engine horsepower and acceleration response.
- Compatible with multiple Ford models and engine types.
Cons
- Requires professional installation for optimal performance.
The DNA Motoring panel air filter combines efficiency, durability, and convenience in one product. Its washable design and compatibility with various Ford models make it a reliable choice to enhance engine performance and fuel efficiency.
| Specification | Details |
|---|---|
| Brand | DNA Motoring |
| Model Number | AFPN-228-RD |
| Compatibility | 13-19 Ford Escape, 07-18 Ford Focus, 14-16 Transit Connect, 15-19 MKC |
| Engine Suitability | 1.0L, 1.5L, 1.6L, 2.0L, 2.3L |
| Filter Type | Washable cotton gauze panel |
| Longevity | Up to 50,000 miles before cleaning |
| Unit Count | 1 Replacement Filter |
For Ford owners seeking an effective and maintainable solution, this air filter offers strong performance at a practical level. Its washable feature saves time and costs compared to disposable filters. Reliable build quality adds peace of mind during daily drives or longer trips.
Reliable build quality adds peace of mind during daily drives or longer trips.
7. KAX Premium Engine Air Filter, CA11114 Replacement for Ford Escape
Enhance your vehicle’s performance with the KAX Premium Engine Air Filter, designed to deliver superior filtration and lasting durability. Crafted for Ford Escape, Focus, Transit Connect, and MKC models, it safeguards the engine by maintaining clean airflow.
Built from high-performance oiled cotton gauze, the filter offers a lifespan twice that of standard filters, supporting mileage up to 20,000 miles. Its efficient design ensures 9% filtration, blocking harmful particles to protect vital engine components.
The filter’s embossed paper media provides three times the dust holding capacity and excellent crease stability, sustaining performance over extended use.
The KAX air filter fits precisely with specified Ford models, including Focus (2012-2018), making it a practical upgrade option. Its radial shape and specific dimensions (2 inches length and width,
2 inches length and width, 3 inches height) provide a secure seal and effective filtration. Though not washable or reusable, the filter’s extended service life reduces frequent replacements, minimizing maintenance effort.
Installation is straightforward, allowing users to replace the engine air filter confidently without complicated tools. The premium materials contribute to improved acceleration, enhanced fuel economy, and steady engine performance, supporting everyday driving demands.
This solution is ideal for those seeking reliable air filtration and better engine longevity in their Ford vehicles.
Pros
- Long-lasting filter life up to 20,000 miles for fewer replacements
- High 99.9% filtration efficiency protects critical engine parts
- Strong dust-holding capacity with durable embossed paper media
Cons
- Not washable or reusable, requiring eventual full replacement
Overall, the KAX Premium Engine Air Filter offers dependable performance and protection for various Ford models. Its quality materials and extended lifespan make it a valuable addition to vehicle maintenance.
Consider this option when upgrading or replacing your vehicle’s air filter to keep your engine running smoothly.
| Specification | Details |
|---|---|
| Brand | KAX |
| Model Number | CA11114 |
| Compatible Vehicles | Ford Escape (2013-2019), Focus (2012-2018), Transit Connect (2014-2016), MKC (2015-2019) |
| Filter Media | Oiled Cotton Gauze and Embossed Paper |
| Dimensions (L x W x H) | 6.2″ x 6.2″ x 8.3″ |
| Filtration Efficiency | 99.9% |
| Shape | Radial |
| Reusable | No |
| Included Components | 1 x CA11114 Engine Air Filter, 1 x Product Manual |
| Weight | 2.88 ounces |
This filter stands out for combining filtering strength with longevity, designed specifically for Ford vehicles to match OEM specifications. Its balance between protection and service interval offers peace of mind for daily drivers and those mindful of maintenance frequency.
8. K&N High-Flow Original Lifetime Engine Air Filter: Reusable, Clean Every
Upgrade your Ford Focus ST’s performance with the K&N High-Flow Original Lifetime Engine Air Filter. Designed to offer superior airflow and filtration, it delivers enhanced engine efficiency without frequent replacements. Its reusable nature contributes to lasting savings and environmental benefits.
Built for durability and power, this air filter significantly improves acceleration and horsepower. Enjoy the convenience of cleaning it only once every five years, reducing maintenance efforts. A perfect blend of rugged construction and intelligent design makes it an exceptional choice for drivers aiming to boost engine health.
A perfect blend of rugged construction and intelligent design makes it an exceptional choice for drivers aiming to boost engine health.
The K&N High-Flow Engine Air Filter uses multiple layers of premium cotton gauze combined with a unique tacking agent to trap contaminants effectively. This carefully engineered media ensures your engine is protected while maintaining optimal airflow for performance gains. Its construction withstands the rigors of daily driving, promising a lifetime of use with proper maintenance.
Installation is straightforward—pre-oiled and designed to fit directly into your factory air box, saving time and effort. Its reusable nature means fewer replacements, which leads to cost savings over time and reduces environmental waste.
Drivers looking for a low-maintenance, high-quality upgrade will find this filter meets their expectations.
Behind its robust build lies innovation aimed at delivering power enhancement and improved engine response. The filter’s washable design supports long-term vehicle upkeep, making it suitable for those who prioritize both performance and sustainability. Ideal for the Ford Focus ST, it provides a balance of efficiency, durability, and value.
Ideal for the Ford Focus ST, it provides a balance of efficiency, durability, and value.
Pros
- Reusable filter saves money on replacements over time
- Enhances horsepower and acceleration with high airflow
- Durable design ensures reliable, long-lasting performance
Cons
- Requires cleaning every 75,000 miles to maintain performance
The K&N High-Flow Original Lifetime Engine Air Filter offers a valuable upgrade that balances performance and sustainability. It brings improved engine power and easy maintenance to Ford Focus ST owners seeking a dependable air filtration solution that endures. Below is a summary of technical specifications for quick reference.
Below is a summary of technical specifications for quick reference.
| Brand Name | K&N |
|---|---|
| Model Number | E-2993 |
| Manufacturer Part Number | E-2993 |
| Unit Count | 1 |
| Item Weight | 0.61 Kilograms |
| Included Components | Engine air filter for FORD C-MAX L4-1.6L F/I, 2007-2017 |
| Global Trade Identification Number | 00024844199775 |
| OEM Equivalent Part Numbers | 1296204, 1477153, 1496204, 1511213, 16899132, 1708877, 1848220, 30792881, 31338216, 76899132, 7699132, 7M519601, 7M519601AC, AV619601AL, CV6Z9601A, ED819601AA |
Choosing this air filter brings a remarkable combination of performance improvements and environmental responsibility. Its longevity and ease of upkeep make it a practical investment for those wanting enhanced engine performance without constant replacements. Compared to similar filters, it stands out by offering both power gains and cost-effectiveness over its lifespan.
Compared to similar filters, it stands out by offering both power gains and cost-effectiveness over its lifespan.
9. K&N Engine Air Filter: Extended Life 24,000 Mile Replacement Air
Enhance your Ford Focus ST’s performance with the K&N Engine Air Filter designed for lasting efficiency and protection. Engineered to offer superior airflow, this air filter helps maintain your engine’s power while extending the interval between replacements.
Built with durability in mind, it withstands demanding conditions and supports your vehicle’s optimal functioning. Enjoy cleaner air intake and improved throttle response on every drive.
The K&N Engine Air Filter features rugged construction, utilizing premium materials that provide up to 24,000 miles of reliable use. Its advanced media is specially treated to capture up to
5% of airborne contaminants, protecting your engine from harmful particles. This advanced filtration material allows for improved airflow compared to standard filters, which contributes to enhanced engine performance and efficiency.
Replacing this filter only every 24,000 miles reduces maintenance frequency, ideal for drivers who cover average highway distances annually. Installation is straightforward, fitting easily without complex modifications, making it suitable for those seeking hassle-free upgrades.
Compared to other filters with shorter lifespans or less effective filtration, this model balances longevity and protection. It’s well-suited for drivers prioritizing engine care and steady performance improvements without the need for frequent replacements.
Pros
- Durable materials enable use up to 24,000 miles
- High filtration efficiency captures 99.5% of contaminants
- Delivers improved airflow for better engine power
Cons
- Replacement interval may be longer than some prefer for very dusty environments
The K&N Engine Air Filter stands out as a reliable choice for prolonging engine life and performance in a Ford Focus ST. By combining durability with effective filtration, it reduces the frequency of replacements while supporting steady power delivery.
This filter suits those seeking a quality upgrade that balances convenience and engine protection.
| Specification | Detail |
|---|---|
| Brand Name | K&N |
| Model Number | KNF-2993 |
| OEM Equivalent Part Number | KNF-2993 |
| Manufacturer | K&N Engineering, Inc. |
| Unit Count | 1 Air Filter |
| Item Type Name | K&N Advantage Plus Air Filter 24K Miles |
| Filter Life | Up to 24,000 miles |
| Filtration Efficiency | Up to 99.5% |
Personally, I find this air filter delivers a smart blend of performance and durability. The extended life means fewer replacements and less hassle.
It keeps your engine well-protected while enhancing airflow, which is a solid benefit for everyday driving needs.
10. RYANSTAR RACING High Performance Air Intake Filter Compatible with 2009–2018
Enhance your vehicle’s performance and airflow with the RYANSTAR RACING High Performance Air Intake Filter. Designed specifically for select Ford models, it combines durability with functionality to bring noticeable improvements.
Its washable and reusable design adds convenience for long-term use.
Engineered for a range of Ford vehicles from 2009 to 2019, this air intake filter supports various engine sizes. It delivers increased airflow without compromising filtration, resulting in better throttle response and overall engine efficiency. Unique to this model is the dual flow mode with an adjustable end cap, allowing drivers to tailor airflow and sound to their preferences.
Unique to this model is the dual flow mode with an adjustable end cap, allowing drivers to tailor airflow and sound to their preferences.
The filter utilizes a dry-type material that requires no oiling, preserving the sensitive airflow sensors important for engine operation. This feature also simplifies maintenance since the filter can be cleaned with water and air-dried before reuse.
Installation is straightforward, requiring just the removal of the factory filter, aligning the new intake filter, and tightening the hose clamp. No modifications or special tools complicate the process, making it a practical upgrade for everyday drivers and performance seekers alike.
Its compatibility with Ford Focus ST and RS models ensures a tailored fit and enhanced driving experience.
Compared to standard air filters, this option provides a balance of improved airflow and effective filtration, contributing to both engine protection and power output. It’s an excellent choice for drivers aiming to boost performance without sacrificing durability or ease of maintenance.
Pros
- Reusable dry filter design requiring no oiling
- Adjustable end cap provides dual airflow modes
- Simple DIY installation with no modifications needed
Cons
- Limited to specific Ford models and engine types only
Offering a combination of enhanced airflow, durability, and user-friendly features, the RYANSTAR RACING High Performance Air Intake Filter is a smart upgrade for compatible Ford vehicles. It maintains engine protection while improving response and sound options.
| Specification | Details |
|---|---|
| Brand | RYANSTAR RACING |
| Model Number | AF110 |
| Compatible Vehicles | 2009–2018 Ford Focus, 2012–2018 Ford Focus ST, 2015–2018 Ford Focus RS, 2013–2019 Ford Escape, 2014–2016 Transit Connect, 2015–2019 Lincoln MKC |
| Engine Compatibility | 1.0L, 1.5L, 1.6L, 2.0L, 2.3L |
| Filter Type | Washable, dry-type, reusable |
| Service Interval | 40,000–50,000 miles |
| Lifespan | Over 200,000 miles |
| Installation | Direct replacement, tool-free |
| Airflow Modes | Dual adjustable end cap for varied flow |
For drivers looking to enhance their vehicle’s breathing capability without frequent replacements, this air filter offers solid value. Its build quality and thoughtful design choices make it suitable for those who prioritize reliability and performance in daily and spirited driving conditions.
11. AEM AE-20993 Dryflow Air Filter
Experience improved engine performance with the AEM AE-20993 Dryflow Air Filter, designed to enhance horsepower and throttle response. Precision-crafted for durability, this air filter captures up to 99% of harmful contaminants, providing reliable protection even in challenging environments.
Manufactured in the USA, it delivers outstanding filtration power without compromising airflow. Suitable for vehicles requiring top quality air filtration, this filter ensures cleaner air intake for a longer lasting engine life.
The AEM AE-20993 Dryflow Air Filter offers a durable and efficient upgrade over standard paper filters. Its cleanable design allows repeated use, eliminating the need for frequent replacements. This filter maintains excellent airflow, contributing to noticeable horsepower gains and quicker throttle response.
Built to perform well under dusty racing conditions, it effectively captures dirt, dust, and other debris that can affect engine efficiency. Installation is straightforward, fitting securely without modifications, making it ideal for users seeking hassle-free replacement options.
Constructed with high-quality materials, the filter guarantees long-term use and reliable performance. Its robust design is backed by a lifetime performance promise, adding value beyond regular filters.
Pros
- Reusable and easy to clean, reducing maintenance costs
- Captures 99% of airborne contaminants for engine protection
- Enhances horsepower and throttle response effectively
Cons
- May require occasional cleaning to maintain optimal airflow
The AEM AE-20993 Dryflow Air Filter balances durability and performance, offering a strong solution for improved engine breathing. Its cleanable nature and high filtration efficiency give it an advantage over disposable paper filters. Ideal for drivers seeking dependable air filtration that supports engine longevity.
Ideal for drivers seeking dependable air filtration that supports engine longevity.
| Specification | Details |
|---|---|
| Brand Name | AEM |
| Model Number | AE-20993 |
| Manufacturer Part Number | AE-20993 |
| Item Weight | 1.2 Pounds |
| Included Components | 1 Air Filter |
| Manufactured In | USA |
Compared to many conventional filters, the AE-20993 stands out by offering a cleanable and durable design. This feature can save money over time while maintaining performance levels expected in aggressive driving or dusty conditions.
For vehicle owners valuing both quality and sustainability, this filter is a solid match.
12. BOSCH 5388WS Workshop Engine Air Filter – Compatible with Select
Engine performance and longevity depend greatly on clean air intake. The BOSCH 5388WS Workshop Engine Air Filter offers reliable filtration designed to protect your Ford Focus ST’s engine from harmful particles.
Its high-quality construction and efficient design help maintain peak engine health and fuel efficiency.
Precision-engineered for select vehicle models, this air filter balances airflow and filtration for powerful engine protection. It meets rigorous standards, making it a dependable choice for drivers seeking durability and consistent performance from their air intake system.
The BOSCH 5388WS Air Filter features numerous pleats that maximize particle holding capacity. This design traps up to 98% of small airborne particles, preventing engine damage.
This ensures even spacing between pleats and effective filtration throughout the filter’s life cycle. The polyurethane foam seal adds elasticity and a tight fit to stop heat and water from entering the air intake system.
These factors collectively promote cleaner air entering the engine, which enhances combustion efficiency. Durable materials provide resistance to environmental stress, contributing to long-term performance.
The filter is simple to install, fitting select Ford Focus models from 2009 to It is an excellent replacement part for owners seeking reliable engine protection without compromise. The quality construction and efficient filtration make it suitable for everyday driving conditions as well as more demanding environments.
Compared with some generic filters, the BOSCH 5388WS delivers higher particle retention and better airflow balance, supporting sustained engine power and reduced wear over time.
Pros
- High pleat count enhances particle holding capacity
- 98% filtration efficiency protects engine from small debris
- Polyurethane seal blocks heat and water intrusion effectively
Cons
- Compatibility limited to select Ford Focus models; verify fitment before purchase
The BOSCH 5388WS Air Filter combines robust build quality with efficient filtration technology. It safeguards your engine, promotes better fuel efficiency, and is straightforward to replace. Ideal for drivers looking for a trustworthy air filter tailored to specific Ford Focus ST years.
Below is a quick reference for key specifications.
| Specification | Details |
|---|---|
| Brand Name | Bosch |
| Model Number | 5388WS |
| OEM Equivalent | 5388WS |
| Material | High velocity cellulose media with polyurethane foam seal |
| Filtration Efficiency | 98% |
| Compatibility | Ford Focus 2009-2011 (select models) |
| Unit Count | 1 |
This air filter stands out by providing excellent airflow combined with effective particle filtration. Its build quality surpasses many generic alternatives, supporting engine longevity. Users seeking a proven replacement option for their Ford Focus ST will find this filter meets key performance needs without complications during installation.
13. K&N E-0630 Replacement Air Filter
Upgrade your Ford Focus ST’s engine performance with the K&N E-0630 Replacement Air Filter. Designed to enhance airflow, this filter helps boost horsepower and acceleration, contributing to a smoother and more efficient drive.
Its durable construction supports long-term use without frequent replacements.
Experience reliable filtration that protects your engine from harmful contaminants. The advanced cotton gauze media and multiple layers capture debris effectively, while remaining washable and reusable for years. This air filter combines efficiency with longevity, making it an excellent addition to your vehicle’s maintenance routine.
This air filter combines efficiency with longevity, making it an excellent addition to your vehicle’s maintenance routine.
The K&N E-0630 Replacement Air Filter offers engineered performance improvements by increasing airflow to the engine. This elevated airflow promotes added horsepower and quicker acceleration, enhancing your driving experience significantly. It integrates seamlessly with the Ford Focus ST for a precise fit.
It integrates seamlessly with the Ford Focus ST for a precise fit.
Constructed from premium cotton gauze layered four times and treated with a specialized tacking agent, it traps dirt and contaminants while safeguarding engine components. The robust build quality ensures that it withstands the test of time without deteriorating or needing replacement frequently.
One of its notable advantages is the long service life, as the filter requires cleaning only every 75,000 miles under normal highway use. This reduces maintenance time and costs compared to disposable alternatives. Its reusable design provides excellent value over years of driving, making it suitable for drivers who want both performance and savings.
Its reusable design provides excellent value over years of driving, making it suitable for drivers who want both performance and savings.
Installation is straightforward, requiring no special tools or modifications, making it user-friendly for anyone keeping the Focus ST in peak condition. Ideal for those seeking improved engine efficiency without compromising durability, this filter stands out from many standard options.
Pros
- Boosts horsepower and acceleration for better engine responsiveness
- Durable construction with premium materials ensures long life
- Reusable filter reduces maintenance frequency and saves money
Cons
- Initial cost is higher than disposable air filters
High-quality filtration combined with a reusable design makes the K&N E-0630 a strong choice for Ford Focus ST owners aiming to maximize engine performance and longevity. Its long cleaning intervals and solid build provide a cost-effective alternative to standard filters.
| Specification | Details |
|---|---|
| Brand Name | K&N |
| Model Number | E-0630 |
| OEM Equivalent Part Number | E-0630 |
| Manufacturer Part Number | E-0630 |
| Manufacturer | K&N Engineering, Inc. |
| Unit Count | 1 |
| Included Components | 2 Air Filters |
| Item Type Name | Replacement Air Filter |
| Item Weight | 2.2 Pounds |
Owning the K&N E-0630 adds value through enhanced drivability and reduced upkeep demands. Compared to many filters that require frequent replacement, its extended cleaning interval stands out. For Focus ST drivers seeking a blend of performance and economy, this option is worthy of consideration.
14. K&N High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium,
Enhance your Ford Focus ST’s performance with an air filter designed for lasting power and efficiency. The K&N High-Flow Original Lifetime Engine Air Filter is engineered to boost horsepower and acceleration. It offers superior protection by filtering out harmful contaminants, helping the engine run cleaner and stronger.
Built with quality materials and innovative construction, this air filter provides excellent airflow without sacrificing filtration. Maintenance is minimal, requiring cleaning only every 75,000 miles, making it a hassle-free upgrade. Its reusable design also supports eco-friendliness by reducing waste from disposable filters.
The K&N air filter improves overall engine response and fuel efficiency through its advanced cotton gauze layers. Crafted with durability in mind, it withstands various driving conditions while maintaining peak performance.
Installation is quick and effortless, designed to fit right into your factory air box with pre-treatment already applied. Ideal for drivers focused on both power and longevity, this filter serves as a smart investment for long-term vehicle upkeep.
Compared to standard disposable filters, it offers sustained higher air flow and engine protection. Its lifetime rebuildable design makes it a cost-effective choice over time.
Whether daily commuting or spirited driving, this air filter supports consistent engine health and improved throttle response.
Pros
- Increases horsepower and acceleration with superior air flow.
- Durable construction designed to last the lifetime of your vehicle.
- Reusable design reduces waste and lowers long-term maintenance needs.
Cons
- Requires periodic cleaning, which may be inconvenient for some users.
The K&N High-Flow Air Filter stands out as a reliable upgrade for Ford Focus ST owners seeking enhanced engine performance and durability. Its ability to combine effective filtration with improved airflow ensures consistent engine efficiency over time.
| Brand Name | K&N |
|---|---|
| Model Number | 33-3131 |
| OEM Equivalent Part Number | Ford 2210514, Ford FA1939 |
| Manufacturer Part Number | 33-3131 |
| Global Trade Identification Number | 00024844369963 |
| Manufacturer | K&N Engineering |
| Included Components | Air Filter |
| Item Type | Replacement Air Filter |
Based on my experience, this air filter offers solid performance improvements and outstanding durability without frequent upkeep. Its easy installation and reusable nature make it a practical choice for those aiming to keep their Ford Focus ST running smoothly while enhancing engine power.
15. PHILTOP Engine Air Filter, High Performance, Premium, Washable,Replacement Car Air
The PHILTOP Engine Air Filter delivers exceptional performance and durability for your vehicle’s engine. Designed to enhance airflow, it ensures cleaner and more efficient combustion, helping your car maintain optimal power and fuel efficiency.
Built for multiple Ford models including the Focus ST and Escape, this air filter stands out through its washable design and high filtration efficiency. It suits drivers seeking reliable replacement parts that combine quality with long-term value.
Crafted from non-woven fabric, the PHILTOP air filter provides strong resistance to deformation while remaining economical by requiring no oil during use. Its multi-layer filtering material blocks up to
9% of contaminants, protecting your engine from harmful particles.
Ease of maintenance is a key feature — rinsing the filter with cold water in just five minutes restores its functionality, extending its service life without costly replacements. Increased air intake by approximately 30% contributes to a power gain of around 10 horsepower, enhancing driving responsiveness and performance.
Compatible with various Ford models such as the 2018-2021 Focus IV, 2020-2021 Focus ST IV, and others, this replacement fits seamlessly while maintaining factory standards. It suits vehicle owners prioritizing performance, durability, and easy upkeep for their engine air filtration needs.
Pros
- High filtration efficiency filters out 99.9% of particles
- Washable and reusable for cost-effective maintenance
- Boosts engine power and airflow by significant margins
Cons
- Requires manual rinsing and drying for maintenance
The PHILTOP Engine Air Filter offers a practical balance between performance improvement and ease of maintenance. Its durable construction and compatibility with numerous Ford models make it a reliable choice for replacement air filters on the market.
| Specification | Details |
|---|---|
| Brand Name | PHILTOP |
| Model Number | Air Filter Replacement 8 |
| OEM Equivalent Part Number | Ford 2210514, Ford FA1939 |
| Manufacturer Part Number | 8760WAF009VUS |
| Material | Non-woven fabric |
| Compatibility | Ford Focus IV (2018-2021), Focus ST IV (2020-2021), Escape (2020-2021), Kuga III (2021), Corsair (2020-2021), Focus S (2020), and more |
| Filter Efficiency | Up to 99.9% |
| Unit Count | 1 |
| Type | Engine Air Filter Replacement |
In my experience, this air filter stands out for its straightforward maintenance and noticeable improvement in engine performance. Its washable nature makes it an eco-friendlier and budget-conscious alternative to disposable filters while effectively safeguarding the engine. A solid choice for maintaining your Ford’s air intake system.
A solid choice for maintaining your Ford’s air intake system.
Best Air Filter for Ford Focus ST: Top Picks & Buying Tips
Ease of installation and maintenance
When selecting an air filter for a Ford Focus ST, the installation process tends to be straightforward for most models, often requiring only basic hand tools and minimal mechanical knowledge. Many filters are designed to fit directly into the existing airbox, simplifying the setup and minimizing time spent on installation.
Regarding maintenance, regularly checking the filter to determine when it needs cleaning or replacement is recommended; typically, intervals vary depending on driving conditions but usually fall between 15,000 to 30,000 miles. For those opting for reusable filters, cleaning involves washing and re-oiling, while disposable filters simply require swapping out with a new unit. Replacement parts and compatible filters are commonly found through automotive stores and online retailers, offering a wide selection that suits different performance needs and budgets, which helps maintain your car’s efficiency without difficulty.
Material and build quality
When choosing an air filter for the Ford Focus ST, paying attention to the type of filter media used can make a significant difference. Paper filters are often favored for their affordability and fine filtration, capturing dust and small particles effectively.
The durability of the frame holding the filter is equally important; a sturdy frame made from robust plastic or rubber helps maintain the filter’s shape and prevents air bypass, ensuring that all incoming air is properly filtered. Since the engine bay can encounter varying environmental conditions, selecting filters with resistance to moisture and contaminants helps prolong filter life and maintain engine health, especially under wet or dusty circumstances.
Considering these points will aid in finding a filter that keeps the Focus ST running smoothly by providing clean, unobstructed airflow and lasting performance.
Price and value for money
When deciding on an air filter for a Ford Focus ST, understanding the differences in cost across various brands can guide towards a sensible choice that matches your budget and expectations. Some brands offer more affordable options suited for routine maintenance, while others provide premium filters with advanced materials that may come at a higher initial cost.
Warranty and customer support also play a significant role in the purchasing decision, as reliable after-sale service can provide peace of mind and assistance should any issues arise. It’s worthwhile to consider filters that come with solid warranty coverage, reflecting confidence from the manufacturer in their product’s durability. Additionally, investing in reusable air filters often leads to savings over time since they can be cleaned and reused rather than frequently replaced.
This long-term approach might involve a larger upfront expense but can reduce ongoing costs and environmental impact. Balancing these factors aids in choosing an air filter that suits both the immediate needs and future maintenance plans for your Ford Focus ST.
Compatibility with ford focus st models
When choosing the right air filter for a Ford Focus ST, it helps to understand the range of model years supported since different generations may have variations in engine layout and intake design. Compatibility with various engine types, such as the 0L EcoBoost turbocharged engine common in these vehicles, is another key aspect that affects flow efficiency and filtration performance.
0L EcoBoost turbocharged engine common in these vehicles, is another key aspect that affects flow efficiency and filtration performance. Options are available that replicate the original equipment manufacturer’s fitment for a seamless installation experience, while aftermarket alternatives may offer enhancements in filtration media or airflow to improve engine performance and longevity. Balancing between sticking with OEM standards or exploring aftermarket solutions often depends on the desired outcome, whether it’s maintaining factory reliability or seeking slight performance gains.
Proper fitment is critical to prevent air leaks and ensure the engine breathes clean air free from contaminants. Paying attention to product descriptions and user reviews can aid in selecting a filter that matches the specific year and engine type of the car, making sure the air filter functions as intended without modification or hassle during installation.
Filtration efficiency and performance
When choosing the right air filter for your Ford Focus ST, understanding how well it traps various particles can help in selecting a product that protects the engine while maintaining performance. Filters with higher particle filtration ratings typically block more dust, pollen, and debris, which contributes to a cleaner airflow into the engine and can prevent damage or wear over time. This balance is important because an overly restrictive filter might negatively influence engine power and fuel efficiency.
This balance is important because an overly restrictive filter might negatively influence engine power and fuel efficiency. Additionally, considering how long the filter maintains its effectiveness before requiring replacement will save time and money in the long run by reducing maintenance frequency. A durable filter maintains consistent filtration and airflow qualities, ensuring the engine runs smoothly across different driving conditions and distances.
Taking these factors into account will assist in finding a filter that supports the overall health and performance of the vehicle without frequent interruptions or performance declines.
Customer reviews and brand reputation
When selecting an air filter for the Ford Focus ST, paying attention to the filter’s ability to protect the engine by trapping dirt, dust, and other particles is key. Depending on driving habits, an air filter that balances filtration efficiency with airflow can help maintain engine performance and fuel economy. For daily commuting, a filter that offers reliable dirt filtration with ease of replacement fits well, whereas those who often drive in dusty or urban environments may benefit from filters designed to handle heavier contaminants.
Some options also emphasize longer service intervals, which can reduce maintenance frequency. Durability tends to vary with the filter media quality and frame construction, so choosing one made of sturdy materials can contribute to longer product life.
Certain filters provide improved airflow that may slightly enhance throttle response and engine sound, which can be appealing for spirited driving. When making a choice, consider how frequently replacement will be necessary based on your driving conditions and how much performance enhancement is desired beyond basic filtration. Average service life and ease of installation are practical aspects that also influence the overall satisfaction with the product.
Average service life and ease of installation are practical aspects that also influence the overall satisfaction with the product. Avoiding filters prone to warping or poor sealing helps prevent unwanted engine exposure to contaminants. Paying attention to product descriptions and specifications can help identify filters that match the Ford Focus ST’s air intake system and offer a balance of protection and performance tailored to everyday needs or more demanding driving scenarios.
People Also Asked
Does Upgrading To A Performance Air Filter Improve My Ford Focus St’S Engine Efficiency?
Upgrading to a performance air filter can improve your Ford Focus ST’s engine efficiency by allowing better airflow and enhanced combustion. However, the gains are usually modest and most noticeable when combined with other performance modifications.
What Is The Best Air Filter Brand For A Ford Focus St?
The best air filter brand for a Ford Focus ST is typically K&N, known for its high-performance reusable filters that improve airflow and engine efficiency. Another reliable option is AEM, which also offers quality filters designed for enhanced performance and durability.
What Are The Differences Between Oem And Aftermarket Air Filters For The Ford Focus St?
OEM air filters for the Ford Focus ST are designed and manufactured to meet the exact specifications set by Ford, ensuring optimal fit and performance. Aftermarket air filters, while often more affordable and sometimes offering enhanced airflow or filtration, may vary in quality and compatibility compared to OEM parts.
How Often Should I Replace The Air Filter In My Ford Focus St?
You should replace the air filter in your Ford Focus ST approximately every 15,000 to 30,000 miles, or once a year, depending on driving conditions. If you frequently drive in dusty or harsh environments, consider checking and replacing it more often.
Can A High-Flow Air Filter Affect The Fuel Economy Of A Ford Focus St?
Yes, a high-flow air filter can slightly improve the fuel economy of a Ford Focus ST by allowing the engine to breathe more efficiently. However, the impact is usually minimal and may vary depending on driving conditions and the specific filter used.
Conclusion
Choosing the best air filter Ford Focus ST depends on your priorities such as improved engine performance, fuel efficiency, and longevity of your vehicle’s engine. High-quality air filters provide excellent filtration, keeping harmful particles out while maintaining good airflow. While some options may have a higher upfront cost or require periodic cleaning, their benefits in protecting the engine and enhancing driving experience often outweigh these drawbacks.
This product suits drivers who want reliable maintenance with minimal hassle, especially those who use their car regularly or under demanding conditions. Ultimately, selecting the right air filter balances performance needs and budget, making the best air filter Ford Focus ST a practical investment for maintaining your car’s health and efficiency without unnecessary complications.
