Active Autowerke Signature S85 Pulley Kit for V10 M5 & M6 [AAV10PP]

The Active Autowerke Signature S85 Pulley Kit for V10 M5 & M6 is a complete bolt on kit engineered using Aircraft Grade Billet 6061 Hard Coat Anodized Aluminum to improve power and performance without sacrificing long term reliability of your V10.

After months of R&D in house and overseas (various climates & conditions), Active concluded that there may be a slight power increase by using a smaller pulley but the trade off is a chance of making the engine run hotter or possibly overheat.  Active chose reliability over that extra 1-2 rwhp that you may get from a smaller pulley.

Another key element in the development of the Signature Pulley Kit was to retain the “Factory Crank hex Drive Adapter”, this was important to keep this factory feature for its inherent purpose. The pulley kit does not modify factory harmonics or dampening. Stronger side walls were the last key element in choosing our size over a smaller design.

Active Autowerke Signature S85 Pulley Kit for V10 M5 & M6 Features:

• HP gains: 10 RWHP ~ 12+ HP
• Complete Bolt on System and is easily reversible
• Aircraft Grade Billet 6061 Hard Coat Anodized Aluminum
• Retains Factory Crank Hex Drive Adapter
• Includes Replacement DRIVE and A/C Belts
• Does Not Modify Factory Harmonics or Dampening
• Reduces Rotational Mass
• Does not cause overheating found in smaller pulley designs
• Paired with the Active Software for Additional Gains