xHP is the worldwide first and complete tuning solution for your BMW M2, M3, and M4. Including support for ZF 6HP automatic transmission, ZF HHP, and 7-Speed CTC.
Since introduction of the ZF 6HP transmissions in BMW vehicles in the early 2000s they remained a blackbox for calibrators. While the ZF units have been tuned for many years now in other vehicles, BMW applied intense encryption and signature mechanisms to avoid calibrators from so. While this is understandable from a manufacturers perspective, it does not satisfy the needs of BMW enthusiasts worldwide.

  • Optimized D & S Shiftpoint for better acceleration in part and full throttle situations
  • Optimized warmup behavior
  • Gear display in dash in D/S/M modes
  • Kickdown delete in manual mode
  • Optimized torque converter lockup in 1st/2nd/3rd gear
  • Raised torque limits for high horsepower applications
  • Automatic rev-matching (throttle blip) on downshifts in S/M modes

Tweaking your transmission is not only about getting quicker or holding more power. Few people are aware of how deeply an automatic transmission contributes to the overall driving experience. From crawling in traffic, over city driving, to taking your vehicle to the drag strip or a race track, the TCU widely defines how your car feels.




  • Dyno Test Cell
  • Dedicated Calibrators, Techs, and Engineers
  • 1,200HP Inertial Capacity (transient)
  • 600HP Continuous (steady-state)
  • 1x Thermotech TTH20 12,000CFM 1.2MBTU Make-up Air Unit
  • 2x Thermotech SIBD245AHP-TH 6,000CFM exhaust extraction
  • Cross-flow Cooling and Exhaust Extraction
  • Cell Provides Up-to 12,000CFM to Front of Vehicle
  • Cell Provides Exhaust Extraction at Rear (Variable Routing Options)
  • Sound and Heat Absorbing Insulation
  • Exhaust VFD 6,000 to 12,0000 Modulation
  • Make-up VFD Pressure-based PID Control
  • Atmospheric Pressure Compensation
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