PPEI Custom Tuning by Kory Willis is the leader in custom tuning for the light duty diesel. While many know PPEI for building some of the fastest trucks on earth, PPEI has also developed quality EZLYNK tuning platforms that deliver superior fuel economy, outstanding towing capabilities, and enhanced driving experience for the Duramax, Powerstroke, Cummins, and most of the newer light duty diesel trucks. Depending on your application, most of vehicles are seeing up to 10%-15% increase in fuel economy, up to 15%-20% increase in 0-60 times, and up to 25% increase in rear wheel horsepower all the while being emission compliant. You can count on PPEI and EZLYNK to get you and your ride where it needs to be. Please feel free to contact one of our tuning experts if you have any questions.