Active Autowerke Supercharger Rotrex C38 Prima Kit Non-Intercooled BMW E46 M3


In collaboration with Frank Smith of TuningTechFS, the Active Autowerke PRIMA supercharger kit has gained a reputation as one of the finest and most affordable systems available for the E46 BMW M3. Capable of exceeding 500 WHP through Level 1 and Level 2 upgrades, PRIMA is a star performer.

This supercharger system was designed with no frills in mind instead focusing on the pure and basic fundamentals. PRIMA is a fully bolt-on non-intercooled system that is completely reversible and DOES NOT require any custom fabrication. For those who desire some extra horsepower, the PRIMA system is fully upgradable via Level 1 and Level 2 options. With an outstanding design synonymous with the Active Autowerke brand, we have made our finest forced-induction kit even more affordable; all while maintaining the inherent driver-centric qualities of the BMW M3.


  • Rotrex C38-92 Supercharger System
  • Active Autowerke GEN 7 Intake Manifold plenum
  • Active Autowerke DOUBLE Blow-off Valve Set-up
  • Active Autowerke Green Filter & Filter Cover
  • Alpha N Software tune w/SIMON 2 interface included
  • High Capacity Fuel Injectors
  • Colder Heat Range Spark Plugs
  • Dedicated oil cooling system for maximum performance and reliability
  • All Hoses, Clamps, Etc. (pre-assembled)
  • Easily Upgradable to Either Level 1 or 2 System


  • All supercharger kits may take up to 6 weeks to ship due to blower availability. please call to confirm status.

Base Prima Supercharger Dynojet Results:

  • Boost: 5.8 psi
  • Stock Horsepower: 285.4 WHP @ 7500 RPM
  • Stock Torque: 232.36 LB-FT @ 5250 RPM
  • Supercharged Horsepower: 426.69 WHP @ 8150 RPM
  • Supercharged Torque: 297.99 LB-FT @ 7200 RPM
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