Unleash your vehicle's potential with Bully Dog. Explore the best gas and diesel truck tuners, performance tuners, turbos, & accessories to power up your ride.

Explore Bully Dog's gas and diesel truck tuners and monitors for performance, efficiency, and real-time monitoring. Optimize your ride now!

The Heavy Duty Gauge Tuner incorporates Bully Dog’s SAE tested and emissions tested diesel engine tuning for both power and economy. Bully Dog tuning devices will not modify or delete vehicle emissions.

Bully Dog tuning devices will not modify or delete vehicle emissions. Bully Dog products that are purchased comply with the Clean Air Act. Tunes that are preloaded in our devices have gone through hours of testing to ensure the safety of the drivers and the environment overall.

BULLY DOG BIG RIG HEAVY DUTY SEMI-TRUCK PERFORMANCE Tuners, Turbos and Manifolds built to take big rigs to the next level. See how much our products can improve those long hauls. SHOP NOW

Bully Dog's BDX Performance Programmer gives you the power to tackle tough terrain, heavy payloads, and maximize fuel economy on the highway.

Bully Dog products that are purchased comply with the Clean Air Act. Tunes that are preloaded in our devices have gone through hours of testing to ensure the safety of the drivers and the environment overall.

Bully Dog began in American Falls, Idaho in 1998 as an enthusiast business focused on improving diesel engine performance. Since then, the brand has come to stand for leading-edge engine ECU calibration, high-quality aftermarket parts, and precision data-logging & …

Bully Dog Thruster for Certain 2018-20 Jeep JL & 2019+ Ram Gas Truck PX 1920DCX4. $199. $299

Expert Guide to Navigating Bully Dog Support; Dodge Cummins® ’18+ GT Bypass Cable Kit; Bully Dog Thruster for Toyota Vehicles with...