Active Autowerke E46 330 Supercharger Kit Level 1Active Autowerke's 330i supercharger kit provides a much needed boost in horsepower to your E46 330. 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 330i was born with. So the performance mutation from normal to extra assertive is smooth and dependable, and totally