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Thoroughbred Diesel is proud to offer Tameless Performance diesel parts for truck owners looking for dependable performance, durability, and quality. Tameless Performance specializes in aftermarket upgrades for Cummins, Duramax, and Power Stroke applications, including billet valve covers, rocker boxes, exhaust manifolds, transmission pans, fuel system components, motor mounts, and other diesel performance upgrades. Shop Tameless Performance parts from Thoroughbred Diesel and get knowledgeable customer service, dependable shipping, and the diesel expertise you need to build, repair, or upgrade your truck. Call 859-737-4966 and speak with one of our experts for free advise.