E60 M5/M6 Underdrive pulley

Our specially designed and engineered S85 underdrive pulley kit is a great addition to the M5/M6.  This is done by improving power through reducing parasitic drag on the engine from slowing the speed of the alternator, water pump and AC compressor...

ESS E-Flash S85 ECU Tuning Software

ESS E-Flash MSS65 ECU software is a result of extensive testing and exact calibration of ECU parameters to allow increased performance on either a stock car or in combination with other modifications. The ESS MSS65 S85 software is developed and tested in...

S85 SMG Transmission Software

Optimized SMG transmission software. Increases shift firmness in S4/5/6 and increases launch control RPM to 4100RPM on US spec M5/M6's.When you order this product, you will receive our USB to OBD programming interface. A laptop that is Windows compatible...

S85 VT1-635 Supercharger System (Gen.2)

Featuring the self contained Vortech V3 supercharger unit in Si trim which is capable of up to 775hp. The S85 VT1-635 Gen.2 supercharger system comes with an especially developed cast aluminium manifold assembly. The VT1 non-intercooled configuration...

S85 VT2-650/675 8PK Drive Upgrade Kit

Complete 8rib beltdrive system upgrade for ESS S85 Gen.1 VT2-650 and Gen.2 VT2-675 supercharger system. 100% bolt-on, massively increases belt traction under heavy loads.

S85 VT2-660 Supercharger System (Gen.2)

Featuring the self contained Vortech V3 supercharger unit in Si trim which is capable of up to 775hp.The S85 VT2-660 Gen.2 intercooled supercharger system comes with an especially developed cast aluminium manifold assembly with a integrated liquid to air...

S85 VT2-675 Supercharger System (Gen.2)

Featuring the self contained Vortech V3 supercharger unit in Si trim which is capable of up to 775hp.The S85 VT2-675 Gen.2 intercooled supercharger system comes with an especially developed cast aluminium manifold assembly with a integrated liquid to air...