GIAC software upgrade for Bentley Flying Spur W12


GIAC Stage 1 Plus adds horsepower, torque and more throttle response throughout the power band. This calibration is compatible with vehicles that have no other upgrades to basic “bolt-ons”.

SKU: GIAC_0015 Category: Tag:


Software upgrade for Bentley Flying Spur GIAC Stage 1 Plus for all W12 engine 6.0 Turbo for the following models:

2003-2009 (1st Gen) Bentley Flying Spur models:

  • Horsepower gain (hp): 560 -> 660 (pump gas)/710 (race gas (switcher or remap required))
  • Toque gain (lb-ft): 479 -> 600 (pump gas)/650 (race gas (switcher or remap required))
  • Optional map switcher with Stock, Pump, Race and Valet modes included (tax included): $300

Quality intake, charge cooling, and exhaust upgrades will improve performance.

To perform a software upgrade for a Bentley, first, the car has to be in perfect mechanical condition. Second, the software availability depends on also the quality intake, charge cooling, and exhaust upgrades. The software upgrade will improve the performance of the car. Crank numbers are estimated based on the measured wheel numbers. In other words, the results may vary depending on different upon the vehicle, transmission, environmental conditions, vehicle health. It also depends on operating conditions, temperatures, dyno type, dyno setup, fuel grade, other variables, and modifications.

HP and Torque figures are average engine estimates derived from wheel power and acceleration testing. A good exhaust will help overall power gains.

* 91 (r+m)/2 or 95 RON fuel compatible. 93 (r+m)/2 or 98 RON equivalent fuel for optimum results.
** 104 RON fuel compatible. 109 RON equivalent fuel for optimum results.

Contact us for any questions that you may have.


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BentleyFlying Spur1st Gen (2003-2009)W126.0 Turbo