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GIAC performance calibrations now available for the 991.2 GT2RS!


GIAC is proud to release engine performance software for the 2018 991.2 GT2RS. This calibration delivers peak to peak gains of 100 - 110 horsepower and 75-85 Ft-Lbs of torque. The program offers smooth part throttle driving and gear transitions, but a substantial increase in power at full load.

Software features include:
- Added boost
- Changes to fuel and timing
- Higher torque limits

Performance gains displayed in the dyno plot shown here were achieved with the GIAC software upgrade only. Additional power increases may be observed with additional performance hardware and/or higher octane fuel. Thank you, Champion Motorsport, for your support during product development and testing.

The MSRP for GIAC software for 991.2 GT2RS applications is $3100. As with all 991.2 and 982 cars, the initial flash/OBD unlock requires the temporary removal of the engine computer (DME) from the vehicle, while all subsequent flashes and upgrades can be done through the OBD port. For questions or sales information, please contact or find your nearest GIAC retail location at

For more info on GIAC tuning products for Porsche ® vehicles click here.