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. MORE INFORMATION Guaranteed to increase horsepower Designed to improve torque and acceleration Replaces entire factory air box and air filter system Washable and reusable lifetime air filter Easy to install, usually in 90 minutes or less Lasts up to 100,000 miles before service is required (depending on driving conditions) K&N Million Mile Limited Warranty SPECIFICATIONS Replacement Filter E-9289 Air Filter Color Red Air Filter Material Cotton Gauze Air Filter Outlet Shape Round Clamps Included No Clamps Included Clamp Material Stainless Steel Clamp Style Regular Couplers Included None Type Gen I Product Style 57i Series International Kits Street Legal In All US States No TUV Approved (Europe) See Vehicle Applications TUV Certificate Number TU-025979-C0-206 Weight 4.2 lb (1.9 kg) Product Box Height 11.81 in (300 mm) Product Box Length 15.34 in (390 mm) Product Box Width 11.81 in (300 mm) California Restricted Not legal for sale or use in California Mounting Hardware Included Yes Warranty No-Hassle Lifetime Limited VEHICLE APPLICATIONS Supported Vehicles 2020 Ford C-Max II 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2020 Ford C-Max II 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2020 Ford Grand C-Max 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2020 Ford Grand C-Max 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford C-Max II 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford C-Max II 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford C-Max II 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford C-Max II 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Focus III 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Focus III 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Focus III 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Focus III 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Focus III 2.0L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Focus III 2.3L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Focus RS 2.3L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Focus ST 2.0L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Grand C-Max 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Grand C-Max 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Grand C-Max 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Grand C-Max 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Transit Connect 1.0L L3 Gas Euro 5 Street Legal in All US States: No TUV Approved (Europe): No 2018 Ford Transit Connect 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2017 Ford C-Max II 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford C-Max II 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford C-Max II 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford C-Max II 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford C-Max II 2.0L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Focus III 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Focus III 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Focus III 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Focus III 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Focus III 2.0L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Focus III 2.0L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Focus III 2.3L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Focus RS 2.3L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Focus ST 2.0L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2017 Ford Focus ST 2.0L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2017 Ford Grand C-Max 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Grand C-Max 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Grand C-Max 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Grand C-Max 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Grand C-Max 2.0L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2017 Ford Kuga II 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2017 Ford Tourneo Connect 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2017 Ford Tourneo Connect 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2017 Ford Transit Connect 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2017 Ford Transit Connect 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2016 Ford C-Max II 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford C-Max II 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford C-Max II 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford C-Max II 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford C-Max II 2.0L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Focus III 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Focus III 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Focus III 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Focus III 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Focus III 2.0L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Focus III 2.0L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Focus III 2.3L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Focus RS 2.3L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Focus ST 2.0L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Grand C-Max 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Grand C-Max 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Grand C-Max 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Grand C-Max 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Grand C-Max 2.0L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2016 Ford Kuga II 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2016 Ford Kuga II 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2016 Ford Tourneo Connect 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2016 Ford Tourneo Connect 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2016 Ford Transit Connect 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2016 Ford Transit Connect 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2016 Ford Transit Connect 1.6L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): No 2016 Ford Transit Connect 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): No 2015 Ford C-Max II 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2015 Ford C-Max II 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2015 Ford C-Max II 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2015 Ford C-Max II 1.6L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2015 Ford C-Max II 1.6L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2015 Ford C-Max II 2.0L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2015 Ford Focus III 1.0L L3 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2015 Ford Focus III 1.5L L4 Diesel All Models Street Legal in All US States: No TUV Approved (Europe): Yes 2015 Ford Focus III 1.5L L4 Gas All Models Street Legal in All US States: No TUV Approved (Europe): Yes
