Injen EVO1106 Evolution cold air intake for 2001–2006 BMW M3 (E46) L6-3.2L replaces the factory intake with a roto-molded housing, a dyno-tuned intake tube, and a large SuperNano-Web dry filter using Twist-Lock attachment. The sealed housing integrates with the OE inlet scoop for a clean fit and is dyno-proven to deliver up to +14 HP and +10 lb-ft of torque; it is not CARB exempt for California.
Injen 01-06 BMW M3 3.2L (E46) Evolution Intake