2008 GMC Sierra Vehicle Performance Chips
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Superchips Cortex Performance Tuner - GM 2008 GMC Sierra
4.8L
Programmer Specs:
Programmer
Cortex
Color Screen
Up to 18 HP
Up to 19 Torque
Features:
Cortex has all the perks of Flashpaq - insane horsepower and torque gains, several power levels and user-tunable options for your vehicle - in a sleek, upgraded, hand-held unit. Plus the multi-VIN feature lets you tune 2 models of the same make.
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Superchips Cortex Performance Tuner - GM 2008 GMC Sierra
5.3L
Programmer Specs:
Programmer
Cortex
Color Screen
Up to 18 HP
Up to 17 Torque
Features:
Cortex has all the perks of Flashpaq - insane horsepower and torque gains, several power levels and user-tunable options for your vehicle - in a sleek, upgraded, hand-held unit. Plus the multi-VIN feature lets you tune 2 models of the same make.
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Superchips Cortex Performance Tuner - GM 2008 GMC Sierra
6.0L
Programmer Specs:
Programmer
Cortex
Color Screen
Up to 25 HP
Up to 29 Torque
Features:
Cortex has all the perks of Flashpaq - insane horsepower and torque gains, several power levels and user-tunable options for your vehicle - in a sleek, upgraded, hand-held unit. Plus the multi-VIN feature lets you tune 2 models of the same make.
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Superchips Cortex Performance Tuner - GM 2008 GMC Sierra
6.6L
Programmer Specs:
Programmer
Cortex
Color Screen
Up to 82 HP
Up to 117 Torque
Features:
Cortex has all the perks of Flashpaq - insane horsepower and torque gains, several power levels and user-tunable options for your vehicle - in a sleek, upgraded, hand-held unit. Plus the multi-VIN feature lets you tune 2 models of the same make.
More Information
Custom Fit Accessories For Your
2008 GMC Sierra
