57S-4000 K&N Engineering K&N Performance Intake Kit C-Max/Focus II / C30/S40/V4
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  • K&N Engineering K&N Performance Intake Kit C-Max/Focus II / C30/S40/V40/V50/V70 / 3/5 FITS: Ford Volvo Mazda - KNN57S-4000
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K&N Engineering 57S-4000
K&N Engineering K&N Performance Intake Kit C-Max/Focus II / C30/S40/V40/V50/V70 / 3/5 FITS: Ford Volvo Mazda - KNN57S-4000

Free Ground Shipping to USA (Lower 48)

2 sold in last 8 days
K&N Engineering
57S-4000
KNN57S-4000
In stock
Cold Air Intakes

Not CARB compliant - cannot be shipped to California

$238.79
4 interest-free payments or as low as $59.69/mo with Shop Pay 4 installments. Prequalify now
K&N Engineering - 57S-4000 Cold Air Intakes
The K&N 57S-4000 Performance Airbox replaces the restrictive factory air...
$238.79
Shop Pay 4 installments
Free Gound Shipping to Continental USA
Description
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
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