Designed specifically for the N55 engine found in BMW models such as the 135i, 235i, M2, 335i, and 435i, the Injen Technology air intake system boosts performance and aesthetics. This kit includes a black aluminum intake tube, a high-performance nano fiber reusable air filter, a tailored aluminum he..

The Injen Technology Evolution intake system is an ideal upgrade for boosting horsepower and torque in the N55 engine, compatible with BMW models such as the 135i/235i/M2 F2x and 335i/435i F3x. This system includes a polyethylene dynamic airbox, a wide bore intake pipe, a "nano fiber" dry washable a..