If you want your vehicle to respond quicker, Pedal Commander is the right tool for the job! Pedal Commander will allow you to customize the throttle response the way you want. FASTER ACCELERATION: Are you looking for auto parts or truck accessories that complement your driving experience? The Pedal Commander system eliminates the delay from your electronic gas pedal, allowing your GMC Sierra 2500HD to accelerate faster, giving your vehicle a night/day difference in performance. 36 ADJUSTABLE SETTINGS: Pedal Commander is equipped with four modes, Eco, City, Sport, and Sport +. Each mode has an additional nine drive modes to fine-tune to your liking, making this a must-have accessory for your GMC Sierra 2500HD. GAS SAVINGS: With Eco mode's significantly slow response, Pedal Commander can increase your GMC Sierra 2500HD MPG and save you up to 20% in fuel economy. You can use the Pedal Commander throttle response controller as a fuel-saver device. QUICK & EASY INSTALLATION: Pedal Commander is a simple plug-and-play device that takes only about 5 minutes to install. Pedal Commander is also Bluetooth-compatible, so you can control the unit using our free Pedal Commander app. WILL NOT VOID YOUR WARRANTY: Pedal Commander will not void the warranty on your GMC Sierra 2500HD or leave any traces behind on your ECU.