Injen 01-06 BMW M3 3.2L (E46) Evolution Intake

If you're looking to get more out of your 2001-2006 BMW M3's 3.2L engine, this Injen Evolution cold air intake is a solid choice. It's designed to help your engine breathe easier, which can lead to improved performance, especially during spirited driving or when you're really pushing the car.

The system features a one-piece, sealed housing made from durable Roto-molded XLPE polyethylene that integrates seamlessly with the factory air scoop. This design helps ensure that only cool, dense air reaches the engine, maximizing power gains. Inside, a massive SuperNano-Web dry air filter is secured using Injen's patent-pending Twist-Lock system, making installation straightforward and the filter easy to service. The custom-tuned intake tube is designed to produce noticeable power increases, with Injen reporting up to 14 additional horsepower and 10 lb-ft of torque on their dyno tests. Quality hardware, including stainless steel band clamps with protective liners and reinforced silicone couplers, ensures a secure and lasting fit.

Installation is designed to be simple, often completed in about 20 minutes, and the intake produces an aggressive growl under acceleration that many enthusiasts appreciate. Keep in mind this intake is not CARB exempt and cannot be shipped to California or used on vehicles registered there.