Welcome to Punisher Performance! Punisher is your best source for custom EFILive tuning for Duramax and Cummins. We also carry and install many trusted brands of performance parts from Suncoast, Edge, Fass, Airdog, Industrial Injection, Fleece, and many more!
Whether you're looking for a few upgrades for your daily driver, more power for towing, or a full blown competition truck, we can handle all of your diesel needs. Our custom EFILive tuning has been proven on the track and on the street to deliver safe and reliable performance.