2004.5 – 2005 GM 6.6L LLY Duramax | Allison Transmission Tuning by T&B

Enhance your driving experience and extend the lifespan of your Allison transmission with PPEI’s Transmission Tuning, specifically designed for the 2004.5 – 2005 LLY Duramax. PPEI’s 5-Speed Allison transmission tuning is a game-changer for your LLY Duramax, whether you seek optimal performance or overall reliability.

Key Features:

• Adaptive Shift Strategy: Tailored to improve the overall performance of your LLY Duramax’s Allison 5-speed transmission, our tuning adjusts shift points dynamically, ensuring a smoother and more responsive driving experience.

• Refined Shift Points: Say goodbye to the low RPM “Lazy” feel. Our tuning eliminates the need for aggressive throttle inputs for downshifts, enhancing fuel efficiency and drivability, especially for trucks with larger tires and, most importantly, LLY Duramax trucks equipped with aftermarket turbos.

• Turbo Lag Reduction: Experience reduced turbo lag with optimized upshifts and downshifts, keeping your engine in the ideal RPM range for maximum efficiency and power delivery.

• Torque Converter Lock-Up Refinement: Our transmission calibration fine-tunes the torque converter lock-up strategy, delivering power to the ground more efficiently. This not only boosts fuel economy but also reduces heat build-up in typical unlocked conditions.

• Customizable to Your Needs: At PPEI, we understand that every driver is unique. If you have specific requirements or preferences for your transmission calibration, our team is ready to customize it to fit your driving style.

Enhanced Durability and Economy:

PPEI’s Allison 5-Speed Transmission Tuning is not just about performance; it’s about longevity and efficiency. Fine-tuning the transmission’s operation helps extend the life of your transmission and improves your fuel economy. PPEI’s Transmission tuning is an essential upgrade for the LLY Duramax trucks with additional horsepower and torque.

Whether you’re driving around town or hauling heavy loads, PPEI’s Transmission Tuning for the LLY Duramax is the best and only transmission tune that unlocks the full potential of your truck. At PPEI, transmission tuning is a must for all vehicles, whether tuned or not. A properly tuned transmission will not only make for an enjoyable driving experience but will also extend the life of your truck’s transmission while allowing your truck to perform at its optimal ability.

Installation Compatibility:

Installing the PPEI Transmission Tuning is straightforward with the right tools. It’s compatible with the following EFILive Hardware:

• EFILive AutoCal V2/V3
• EFILive FlashScan V2/V3