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M6

  • $1,295.00 Choose Options S85 ECU Tuning Software
    ESS Normal Aspiration optimized ECU software is a result of 100's of dyno runs and exact calibration of all parameters to allow maximum performance gains with improved drivability/fuel consumption and stock engine longevity...
  • $995.00 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 information on how to remove your...

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