Active AutoWerke


Active Autowerke Supercharger Rotrex C38 Level 2 Kit - Bmw E46 328, 330 1999-2005


Active Autowerke’s 328i supercharger kit provides a much needed boost in horsepower to your E46 328. Specifically designed to run with 91-93 octane pump fuel and your factory ECU, this system uses our dyno-tuned software adjustments to manage ignition, fuel, vanos, rev limits, etc – all programmed into the same onboard computer your 328i was born with. So the performance mutation from normal to "extra-assertive’ is smooth and dependable, and totally reversible to stock. Even our oil cooling upgrade is self contained and non-intrusive of the factory oil system. Nothing beats a complete bolt on supercharger system. Bottom line: you get to experience M3 performance in a 328i at an incredibly affordable price. This is a must for the true E46 enthusiast.

The stage 2 system raises the boost levels of this incredible supercharger system and includes a Active Autowerke air to air front mount intercooler. The intercooler helps prevent heat soak and delivers superior performance. With the matching software at the heart of the system the stage 2 system proves to be the ultimate kit for the enthusiast looking to maximize their 328's potential.  


  • Rotrex C38-81 trim supercharger
  • Front Mount Air to Air Intercooler
  • Mounting bracket, pulleys and belt
  • 6 larger high-flow fuel injectors
  • Active Autowerke Air Filter (Some models may use K&N)
  • Self-contained oil system with front-mount oil cooler
  • Active Autowerke/Bosch bypass valve
  • Active Autowerke Dyno-Tuned Software
  • All mounting hardware, plumbing, hoses and clamps
  • Illustrated instruction manual & installation guide
  • 2 Year Warranty with free tech support


            • Power: 365 BHP @ 7000 RPM
            • Torque: 285 ft-lbs @ 5400 RPM
            • Boost Level: 10.5-11 psi

            VEHICLE FITMENT:

            • Bmw E46 328 1999-2005
            • Bmw E46 330 1999-2005


                            Images are for representation purpose only and may differ depending on application.