2001 - 2004 GM 6.6L LB7 Duramax | Engine Tuning by PPEI

PPEI Engine Calibration for 2001 - 2004 LB7 Duramax Trucks Revitalize Your Ride: Elevate your 2001 - 2004 LB7 Duramax with PPEI's Engine Calibration. Designed for those who demand more from their vehicle, this advanced calibration unlocks up to 120+ HP, directly to your wheels, redefining your driving experience. Dynamic Performance Upgrades: Experience a transformation in your truck's performance. Our tuning enhances throttle response, boosts acceleration, minimizes turbo lag, and refines overall engine efficiency. It's not just about power; it's about a smoother, more responsive journey. Efficiency Redefined: PPEI is committed to efficiency. Our Engine Calibrations are meticulously engineered to reduce excessive fuel consumption, ensuring a more fuel-efficient drive without compromising on performance. Towing Made Easy: Transform your truck into a towing powerhouse. The LB7 Duramax Engine Calibrations optimize your truck's ability to tow, making heavy loads feel effortless. Optimal P