Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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For Your Every Summer RSVP, with Code: SUMMER15
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.Installation Instructions
Installation Instructions
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
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.8 ★★★★★
Based on 2054 reviews
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Product Reviews
★★★★★ 5
Great for organizing
Color: Black3pro
Arrived as scheduled. Just as pictured. I'm happy with my order. They Do Require full contact to support weight. Panels with bends cut down on what they hold ( slide down under load) I put a piece of tape below the magnet & it stopped the slide. They work great for my smaller shovels & tools.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Perfect. Strong Magnets. Good Plastic Sleeving. I have bought Twice.
Color: Black3pro
Very Handy! I ran out of room for my cordless tools and had an entire side of my toolbox. I bought these and hung the tools on them. Problem solved. No fasteners, no extra wall space. They hold even my heavier cordless tools.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
My new magnet hook
Color: Black3pro
Worked great
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Great magnet!
Color: Black3pro, Color: Black3pro
Heavy duty and great magnet! Shop approved!
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Reviewed in the United States on March 21, 2026
★★★★★ 1
Expensive and Weak
Color: Black3pro
they don't hold anything substantial unless you screw them in. Defeats the purpose of a magnet.
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Reviewed in the United States on April 10, 2026
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