2017 GMC Sierra 2500 HD Programmers & Tuners

Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using ...

Derringer adds more torque and horsepower throughout the powerband than the competition safely and reliably letting you pull the grade without downshifting. Step up to some serious reliable and dependable power day in and day out, with the Banks Derringer; Adds up to 61 hp and 112 lb-ft; Each level ...

Results in torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer is dyno calibrated to use multiple data inputs such as throttle position, rpm, vehicle speed, AFR, knock, coolant temperature, and EGT, just like you...

Results in torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer is dyno calibrated to use multiple data inputs such as throttle position, rpm, vehicle speed, AFR, knock, coolant temperature, and EGT, just like you...