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". A quality exhaust upgrade will improve performance.
OEM Horsepower and Torque
400 HP 406 Ft-Lbs
GIAC Pump Mode*
455 HP 495 Ft-Lbs
GIAC Race Mode**
HP and Torque figures are average engine estimates derived from wheel power and acceleration testing. * 98 RON equivalent fuel for optimum results. ** 106 RON equivalent fuel for optimum results.
GIAC PRODUCTS ARE INTENDED FOR CLOSED COURSE COMPETITION. UNLESS OTHERWISE NOTED THEY ARE "LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY." ( PER CARB ) Please read our important waranty and disclaimer notices for more information.