It’s a lot like having an M3. Without the M3. With 8 pounds of boost for an increase of over 100 flywheel HP, Active Autowerke’s 325i and 323i super¬charger systems deliver instantaneous power and low end torque in amounts far beyond what the bimmer factory gods intended. Specifically designed to run with 91-93 octane pump fuel and your stock engine management system, this system uses our dyno-tuned software adjustments to manage ignition, fuel, vanos, rev limits, speed governors, etc – all programmed into the same onboard computer your car 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. Bottom line: you get to experience near-M3 performance in your 325i or 323i at an incredibly affordable price. Without sacrificing drivability, comfort, integrity or amenities. Not too shabby at all.