In every N54/N55 is plagued by the constant carbon build up on intake valves,and with every mile driven the build up is progressively worse. This causes: Issues with drive ability Loss of power Idle inconsistencies Emission concerns This can be seen here in macro detail. (Before/After) Make your appointment with PSI now for this cleaning. - Read More -
The 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 Active Autowerke Supercharger Plenum has been designed with eight high-flow velocity stacks, and large three inch intercooler piping to supply cooled air.