Whether you need powerful tuning for your aggressive diesel truck build, or just need to adjust your truck's speedometer and odometer after adding big tires, our friends over at Hypertech are here to help you out. Hypertech has an excellent lineup of tuners and tire calibrators that get you the performance and accuracy out of your diesel truck. Hypertech has Duramax tuners, Cummins tuners, and Powerstroke tuners available that will help take your truck to the next level. Hypertech offers both handheld and in-line tire calibrators that are compatible with basically any diesel truck on the road.