Sierra 3500 HD

Get Ready For The Ultimate Performance Upgrade For Your Gm Truck. Whether You Have A Chevy Silverado Or Gmc Yukon Or Something In Between, The Predator Is Going To Ramp Up The Performance On Your Truck In A Big Way! Running The Predator's Performance...

Bring your vehicle to life with PedalMonster. City, Sport, Track with 30 levels of control. The only OBD-II connected throttle sensitivity controller. Adjustable low-speed trim, reverse safety, and ActiveSafety circuitry included! PedalMonster stacks...

Bring your vehicle to life with PedalMonster. City, Sport, Track with 30 levels of control. The only OBD-II connected throttle sensitivity controller. Adjustable low-speed trim, reverse safety, and ActiveSafety circuitry included! PedalMonster stacks...

Put the finishing touch on your lifted vehicle with Rough Countrys Speedometer Calibration Device! This easy-to-use Speedometer Calibrator helps you quickly and easily reprogram your vehicles speedometer to match the output of your larger tires. Your...

When your vehicle's throttle isn't what you need, it's time for a boost with the Bully Dog Thruster. This device is easy to install inline between your vehicle's pedal position sensor and the vehicle harness. Adjust on the fly and really feel the change...

When your vehicle's throttle isn't what you need, it's time for a boost with the Bully Dog Thruster. This device is easy to install inline between your vehicle's pedal position sensor and the vehicle harness. Adjust on the fly and really feel the change...

A clean, finished look! Banks pillar gauge pods provide a clean, finished look to your vehicle's interior. Mounts on A-pillar allowing wires and tubes to be cleanly routed for a finished look. Available in 1-, 2- or 3-gauge configuration. Full-pillar...

The Pulsar LT is a new in-line module for 2015-2016 Chevrolet Silverado and GMC Sierra 2500/3500 6.6L Duramax that offers complete adjustability of many features, all from your steering wheel controls. Without modifying your truck's ECM, Pulsar LT offers...

Our GT Platinum Diesel Tuner is our top-selling product - and for good reason. The GT Platinum Diesel is four products in one remarkable unit: a vehicle engine tuner, monitor, gauge, and diagnostic device all in a single unit. The remarkable GT...

The Flashcal for Truck and Amp'd 2.0 Throttle Sensitivity Booster kit for gas trucks offers quick, meaningful, and market-leading features that consumers love. Adjust for aftermarket tire and gear adjustments with Flashcal and then wake up that laggy gas...

Bring your vehicle to life with PedalMonster. City, Sport, Track with 30 levels of control. The only OBD-II connected throttle sensitivity controller. Adjustable low-speed trim, reverse safety, and ActiveSafety circuitry included! PedalMonster stacks...

Pedal Commander is a throttle response controller. It removes response delays on your electronic accelerator pedal. Effectively, it allows your engine to respond faster. As a result, your car can accelerate faster. You paid lots of money for your car,...