The Injen Evolution cold air intake for 2003–2007 Dodge Cummins 5.9L is a robust roto-molded induction system built to improve airflow and power. It features a two-piece box with boost plenum, large SuperNano‑Web dry filter, smooth intake tube, stainless hardware and silicone couplers. Installation is drop-in with no cutting; dyno-proven gains reach roughly 25 hp and 62 ft‑lbs of torque, and the design is CARB‑listed where noted.
Injen 03-07 Dodge Cummins 2500/3500 5.9L Evolution Intake