K&N Jeep 57-Series - K&N air intake kits use only non-metallic molded High degree of Polyethylene tubing that cuts down air temperature and decreases intake sound over a metal tube. K&N air Intake kits virtually get rid of air way limitation by replacing the air filter and the entire air path to the engine The precision engineered tube drives a massive amount of air into an engine, which converts into serious horsepower gains for your Jeep vehicle! .
K&N Jeep 63-Series Air-Charger intakes are a relative to the 57-Series and highlight the same molded HDPE structure, but are for newer models so they are not yet CARB excepted, so K&N 63 series is currently illegal for street use in the state of California. K&N Intake Kits will become street legal in CA when the CARB certification process is complete.
K&N Jeep 77-Series Polished finish kit part number’s end in "KP". Metal intake kits for Jeep Vehicles combine excellent performance and under-the-hood style. Featuring free-flowing mandrel-bent aluminum tubing, the 77-Series intakes have a highly polished aluminum finish, leading many Jeep drivers to opt for the outstanding visual appeal of K&N air intake kits. The metallic finishes are bold, beautiful and last forever.