Bully Dog products are developed with you in mind and each of you has a different need, want and desire. Our products, all the way back to the first propane kits, reflect that. Bully Dog products are built to be flexible, allowing each user to get their own desired result, from outrageous performance on the race track to improved fuel economy driving down the highway. 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. Simply the Best DPF Delete Tuner Available!