FabSpeed Bentley Bentayga ExperTune Performance Software



ExperTune Performance software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable). Achieve maximum power from the Bentley Bentayga 6.0L V12 / 4.0L V8 Twin Turbo engine without sacrificing driveability or reliability by optimizing the engine's performance.                                


  • Fits all Bentley Bentayga 6.0L W12 / 4.0L V8 Twin Turbo vehicles Only 


  • Bentley Bentayga W12

    • Stock = 522 HP / 668 TQ

    • Tuned = 622 HP / 798 TQ


  • This is not a physical/shipped product.  This upgrade requires you to send us your ECU for re-programming. You will be emailed a download link with detailed instructions after adding this to your cart and checking out.

  • While a vehicle equipped with bolt-on upgrades will experience maximum gains as a result of the increased efficiency of the engine, great power gains can be made on a completely stock vehicle!  

  • You must fill out and include a copy of the ECU Information form along with your ECU upon sending it in. Please contact us if you need to send the form in any other manner.

  • Fabspeed Motorsport saves your stock/factory ECU settings so that we can convert or flash your ECU back to stock settings at any time for a small fee.


Shipping costs for sending an ECU to Fabspeed is the responsibility of the purchaser.  The ECU will be tuned within 24-48 hours of receiving it and Fabspeed will then ship back the ECU using whatever method it was shipped in with.  (For example: If you send in your ECU via Ground shipping, we will ship it back via Ground.  If you ship it via Overnight, we will ship it back via Overnight.)