aFe MagnumFORCE Intakes Stage-1 P5R AIS P5R BMW Z4 (E85) 03-05 L6-3.0L M54 This air intake system produces 11 max horsepower, 14lbs. x ft. torque and out-flowed the factory intake by 76%. This system includes a durable 16 gauge, powder-coated heat shield and uses a washable/reusable conical five layer air filter. This intake system incorporates a unique 3-angle filter adaptor that smooths air transition into the intake tract for better performance. One-piece heat shield requires little or no assembly and the filter is constructed with 100% polyurethane for long life and multiple cleaning cycles.
Highly reccomend it for sound and increases MPG by just a bit. It's more like a $250 item but its really good quality and comes with packaging like it would from Factory.