PPEI Engine Calibration for 2001 - 2004 LB7 Duramax TrucksRevitalize 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 Pairing: For the ultimate experience, pair our Engine Calibration with PPEI's Transmission Calibration. This combination guarantees peak performance in both engine and transmission tuning, ensuring seamless gear shifts and eliminating gear hunting, especially under towing conditions.Transmission Considerations:For Stock Transmissions: We offer varied power levels, but recommend not exceeding an additional 120 HP to avoid premature transmission failure. Available levels are:Level 1: +15 HPLevel 2: +30 HPLevel 3: +60 HPLevel 4: +100 HPLevel 5: +120 HPFor Built Transmissions: Unleash greater power with levels designed for enhanced transmissions:Level 1: +30 HPLevel 2: +60 HPLevel 3: +100 HPLevel 4: +160 HPLevel 5: +230 HPExperience the Difference: Choose PPEI's Engine Calibration for your 2001 - 2004 LB7 Duramax and transform your truck into a more powerful, efficient, and responsive vehicle. It's not just an upgrade; it's redefining the limits of your truck and driving experience.Installation & Compatibility: Easy installation with EFILive Hardware & Software. Compatible with EFILive AutoCal V2/V3 & EFILive FlashScan V2/V3, ensuring a smooth and straightforward tuning process.