With the right tuning, your diesel truck can churn out absolutely massive horsepower and torque, and SCT Performance offers up some of the most reliable and powerful diesel performance tuning on the market. SCT's tunes turn up the horsepower and torque on your diesel truck and come on easy-to-use devices that make it a breeze to stack on huge performance. SCT also has a huge network of custom tuners across the country allowing you to stack on modifications that other tuning companies can't handle. SCT has Duramax tuners, Cummins tuners, and Powerstroke tuners that will give your diesel truck of choice awesome performance.