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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
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Description
K&N Performance Intake Kit for Ford C-Max/Focus II / Volvo C30/S40/V40/V50/V70 / Mazda 3/5The K&N 57S 4000 Performance Airbox replaces the restrictive factory air filter and air box lid. K&N performance air boxes are designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The 57S 4000 Performance Airbox comes with an
The K&N 57S-4000 Performance Airbox replaces the restrictive factory air filter and air box lid. K&N performance air boxes are designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The 57S-4000 Performance Airbox comes with an oversized conical K&N high-flow air filter and an injection molded air box lid with the K&N logo embossed on top. The air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This performance air box is relatively easy to install into the air box base with commonly available tools. K&N builds these air box systems to last for the life of your vehicle and they are backed by K&N's Million Mile Limited Warranty. Some K&N 57S Series Performance Airboxes are compliant with the latest TUV emissions and sound regulations. Check the K&N catalog or website for vehicle applications and specific TUV status for each vehicle and air intake.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017 | Ford | C-Max | Energi SE |
| 2013-2016 | Ford | C-Max | Energi SEL |
| 2017 | Ford | C-Max | Energi Titanium |
| 2013-2017 | Ford | C-Max | Hybrid SE |
| 2013-2016 | Ford | C-Max | Hybrid SEL |
| 2017 | Ford | C-Max | Hybrid Titanium |
| 2016-2018 | Ford | Focus | RS |
| 2013-2015 | Ford | Focus | S |
| 2013-2015 | Ford | Focus | SE |
| 2013-2018 | Ford | Focus | ST |
| 2013-2015 | Ford | Focus | Titanium |
| 2014-2016 | Ford | Transit Connect | Titanium |
| 2014-2016 | Ford | Transit Connect | XL |
| 2014-2016 | Ford | Transit Connect | XLT |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Look great Love it
Size: 11.5, Color: Cognac
Nice looking !! It feel great and right size
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Reviewed in the United States on August 10, 2025
★★★★★ 3
Criterio y gustos propios!
Size: 9, Color: Cognac
Los botines están bien! Solo que para mí gusto deberían tener un poco más de grosor en la suela, necesitan un poco más de confort. Por eso decidí regresarlos. Para ser botines requieren un tacón un poco más alto. Gracias!
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Reviewed in the United States on December 29, 2024
★★★★★ 5
Men’s mock golf shirt
Color: Lake Green, White, Black, Size: XX-Large
Fit & quality very good.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
Nice Fit
Color: Black, White, Light Gray, Size: 3X-Large
I picked this up looking for something simple but clean, and it delivered. The fit is comfortable, the material feels solid, and it looks good without needing much effort. It’s one of those pieces you can throw on and still look put together.
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Reviewed in the United States on March 29, 2026
★★★★★ 4
Good value, soft and comfortable
Color: Black, Army Green, Light Gray, Size: 4X-Large, Color: Black, Army Green, Light Gray, Size: 4X-Large
Initial thoughts are very positive with this 3 pack shirt set. The green is similar to an OD military green and the black and gray are standard color shades. Material is soft and sizes are true to size. The mock turtleneck isn’t too tight but may still be a little annoying to some people. I do question the amount of spandex in these shirts. Tag says 5% but these shirts are extremely stretchy and feels like a higher spandex content. It’s also a little tough to figure out which way is the front of the shirt. Visually rhe front does have a lower collar line than the back but would still be nice to have a brand tag printed in the back of the shirt for quicker identification.
Overall for roughly $12 a shirt these are a good choice for everyday wear. I will update rating if these shirts fail to meet expectations after further use.
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Reviewed in the United States on April 8, 2025