ESS Tuning S65 Underdrive Pulley Kit - E9x M3 Until 05/08

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.
$695.00

Product Information

The specially designed and engineered ESS Tuning S65 underdrive pulley kit is a great addition to the E90, E92 or E93 M3.  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 S65 Performance E-Flash Tune Software.

NOTE: BMW changed the belt configuration from a single-sided (power steering & AC) belt to a double-sided belt after May 2008. This kit is made for cars build BEFORE the changeover.

Package components

  • CNC hard anodized S65 crank pulley with precise and measured belt groves and bolt holes
  • Serpentine belt
  • Single-sided power steering & AC belt for cars built before 05/08
Models
  • 3 Series / E90 / E91 / E92 / E93 (2005-2013) / M3

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After 3 other BMW workshops couldn't fix the problem with my M3. SouthernBM sorted it. Excellent to deal with, great communication and customer service.

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