Popular Tags

GIAC 991.2 Porsche Carrera Software Now Available!


GIAC is proud to release GIAC engine performance software for the 991.2 Carrera! This calibration delivers peak-to-peak engine estimate gains of 62 hp and 111 ft/lb torque. Estimated crank power output is 438 - 446 horsepower and 455 - 474 ft/lbs of torque on 91 octane . The program offers smooth part throttle driving and gear transitions, but a substantial increase in power at full load.

Software features included:
- Increased boost
- Changes to fuel and timing
- Higher torque limits

Special thanks to Rotiform for offering their in-house Carrera, which was used for testing on our in-house Mustang MD500SE dynamometer. The engine horsepower and torque graphs are estimated from wheel dyno tests using a correction value of 1.112. A wheel dyno comparison is also included.

Performance gains displayed in the plots shown were achieved with the GIAC software upgrade with only using 91 octane. Additional power increases may be observed with additional performance hardware and/or higher octane fuel.

The MSRP for GIAC software for 991.2 Carrera applications is $2200. All supported 991.2 and 982 computers initially require a "bench unlock" flash which can be done by GIAC or select GIAC dealers. Once unlocked these controllers can be flashed over the OBD port by any GIAC dealer. For questions or sales information, please contact or find your nearest GIAC retail location at