xHP Flashtool is the worldwide first and complete Tuning solution for your BMW with ZF6HP or ZF8HP automatic transmission. xHP is the only tool that focuses fully on getting the best from your Auto- Transmission and is the worldwide leading solution for BMW vehicles. xHP put's the power to fully customize your automatic transmission at your hands. Connect your Smartphone/Tablet to your car and start customizing instant by yourself or choose from pre-defined OTS maps in the xHP in-App Store.

Since introduction of the ZF 6HP transmissions in BMW vehicles in the early 2000s they remained a blackbox for Tuners and car enthusiasts worldwide. While the ZF units have been tuned for many years now in other vehicles, BMW applied intense encryption and signature mechanisms to avoid Tuners and enthusiasts from doing so. While this is understandable from a manufacturer’s perspective, it does not satisfy the needs of BMW enthusiasts worldwide.


The ZF-Automatics were used throughout the whole BMW range from the 1-series hatchbacks to the mighty Alpina B5 cars putting out around 500 bhp and 700 Nm of torque. While the hardware stays widely the same throughout all applications and is mainly divided in only a few types, the software inside the controller makes it possible to adapt the transmission to every vehicle and mimic a wide range of driver styles. Smooth and comfy in the Diesel applications, the same transmission in the Alpina B3/B5 come with a way more sportier touch and make it hard to believe, that they are from the same breed.

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. Like everyone drives different with a manual, the maps inside the TCU hide the secrets to tweak your automatic transmission to your personal likings and finally experience what BMW promised you once in the glossy brochure.


Available for over 200 BMW Models from 2003 to 2018, xHP Flashtool is the worlds leading solution for enhancing your Auto Transmission!

Easy and simple to use at home, you can safely improve the overall performance of your BMW, get access to hidden features and enjoy faster shifts just within minutes! Or visit our London based workshop and we can install and calibrate the tune for you.



  • Optimised D Shiftpoints to facilitate sporty, yet economy style driving

  • Optimised Shift Strategy for up/downhill driving

  • Optimised Warmup Behaviour

  • Optimised Torque Converter Lockup in 1st/2nd/3rd gear

  • Adapted Torque Limits for Tuned engines

  • Kickdown delete in Manual Mode

  • Gear Display in Dash in D/S/M Modes


  • Optimised D & S Shiftpoints for better acceleration in part and full throttle situations

  • Approx. 25% faster upshifts in D/S/M modes

  • Faster paddle response time

  • Optimised Torque Converter Lockup in 1st/2nd/3rd gear Optimised Warmup Behaviour

  • Further increases in Torque Limits for tuned engines

  • Kickdown delete in D and Manual modes

  • Gear Display in Dash in D/S/M Modes


  • Optimised D & S Shiftpoints for better acceleration in part and full throttle situations

  • Approx. 25% faster upshifts in D/S modes

  • Approx. 50% faster upshifts in M mode

  • Rev Matched downshifting (Throttle – Blip)

  • True manual mode (no forced upshift at limiter)

  • Instant paddle response time

  • Optimized Torque Converter Lockup in 1st/2nd/3rd gear

  • Optimized Warmup Behaviour

  • Torque Limits set to 1000 Nm (737 ftlb)

  • Kickdown delete in D/S/M

  • Gear Display in Dash in D/S/M Modes

© Copyright GCAP Performance 2021 ©



GCAP Performance

6 Powis Mews

Notting Hill


W11 1JN