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”. The addition of a BMC high-flow air filter and exhaust system will increase overall performance.

Tuning is performed in-house via laptop through your vehicle’s OBD-II port.

991.2 Carrera
GIAC Tuned: 440 HP / 460 LB-FT
OEM: 370 HP / 350 LB-FT
DIFF: +70 HP / +110 LB-FT

991.2 Carrera S
GIAC Tuned: 500 HP / 480 LB-FT
OEM: 420 HP / 385 LB-FT
DIFF: +80 HP / +95 LB-FT

991.2 Carrera GTS
GIAC Tuned: 525 HP / 500 LB-FT
OEM: 460 HP / 430 LB-FT
DIFF: +80 HP / +95 LB-FT

HP and Torque figures are average engine estimates derived from wheel power and acceleration testing. Figures based on 91 octane fuel. Use 93 octane when available for optimum results.