Injen 15-20 BMW M3/M4 3.0L Evolution Intake

Roto-molded Housings: Both of the one-piece sealed housings utilize the all new Injen Twist-lock System (Patent Pending) to securely attach the SuperNano-Web Dry air filter in place which eliminates the use of unnecessary hardware and provides a simple installation that anyone can accomplish. To top it all off, the housings sport our all new ClearVue badge for easy filter inspection and also provides a clean look that pops every time you open the hood.
Datasheet
Installation Instructions