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Water Meth Inj Kits
We specialize in diesel performance parts, if you do not see what you are looking for, stop clicking and call us at 866-737-4966 for free advice.
We offer a huge selection of stock replacement parts for your diesel!
Diesel Tips Shirts
Show your support with a Thoroughbred Diesel t-shirt, sweatshirt, or sticker decal.
Make heads turn with custom truck accessories from Thoroughbred Diesel.
Diamond Eye Performance
DPF Upgrade Kits
Make your ride a BULLY. An industry leader in developing full-featured aftermarket enhancements for a number of vehicle applications.
Each Bully Dog product is built to ensure that it consistently meets and exceeds expectations, yours and ours. Each product goes through an in-depth research and development process (R&D) followed by a grueling development procedure that is carried out by a staff of the best engineers in the world. Once designed, each product is put through months of rreal-worldtesting. This testing is performed across the United States so that Bully Dog can be sure that each product works correctly and flawlessly in various elevations, weather conditions and driving situations from towing a heavy load to racing down the track.