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Bully Dog products are developed with you in mind and each of you has a different need, want and desire. Bully Dog products are built to allow each user to get their own desired results. They meet all your needs from fuel economy on the highway to performance on the race track. Bully Dog products have you covered with increased performance, added safety and improved economy. This is evident with the Triple Dog™ GT line of product for gas and diesel vehicles, the Performance Management Tool and our new line of big rig and industrial products. Our DPF Delete Tuner is the best available.