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ESS Tuning S85 Underdrive Pulley Kit - E6x M5/M6

ESS Tuning was founded in Aremark, Norway in 1995, providing supercharger solutions to the mighty BMW platform. Since then, they've amassed a legendary reputation as the largest BMW supercharger system manufacturer in the world, and as a well-known innovator in the chip and ECU tuning sector with an extensive expertise in Bosch and Siemens engine control systems. In the quest for true uncompromised performance, no one rivals ESS Tuning.
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$695.00

Product Information

The specially designed and engineered ESS Tuning S85 underdrive pulley kit is a great addition to the E60 M5 or E63/E64 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 components. Hp gains are approx. 10-20hp depending on condition of car, climate, and other performance products.

For maximum performance we also suggest pairing a full exhaust system and the ESS Tuning S85 Performance E-Flash Tune Software.

Package components

  • CNC hard anodized S85 crank pulley with precise and measured belt groves and bolt holes
  • Serpentine belt
  • Power steering & AC belt
Models
  • 5 Series / E60 / E61 (2003-2010) / M5
  • 6 Series / E63 / E64 (2003-2010) / M6

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In Stock Items marked GREEN or 'In Stock' are currently in stock at SouthernBM. Most orders are shipped within 1-2 business days. ‘Click & Collect’ orders are usually ready within 1-2 hours during normal trading hours.
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