Active Autowerke Rotrex C38 Kit - E9X M3 gift for valentine The most noticeable difference between

The most noticeable difference between the Active Autowerke F8X Rear Exhaust Section and the BMW factory exhaust is how we utilized the muffler

detailed remapping to the entire DME we have been able to increase your S54's output by 14 HP and 11 ft lbs of torque on a stock BMW E46 M3 with factory settings for a normal street car

Length - 22"

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Active Autowerke Rotrex C38 Kit - E9X M3 gift for valentine The most noticeable difference betweenThe advanced design and sleek features of the Active Autowerke Supercharger System include a front mount air to air intercooler system with a separate oil cooler for the supercharger unit's independent oil system. The Active Autowerke Supercharger Plenum replaces the factory air box and is designed to have an OEM type look with custom finishes available at the customer's request. The Plenum has been designed with eight high flow velocity stacks, and