PPEI Allison Transmission Tuning PP-LMM-TT | 2007.5-2010 Duramax 6.6L LMM

PPEI Transmission Tuning – Extend Transmission Life & Boost Fuel Economy

Extend your transmission life and increase your fuel economy with PPEI Transmission Tuning! A must-have for tuned trucks with additional torque and upgraded performance setups.

Refined Shift Points

The refined shift points eliminate the low-RPM “lazy” feel that forces drivers to stab the throttle for a downshift – not cool, and definitely a fuel economy killer! For vehicles equipped with larger turbochargers, PPEI transmission tuning is essential to get the engine back into the proper RPM range to match the torque curve of the new turbo.

Torque Converter Lockup Refinement

Along with improved shift points, PPEI refines the torque converter lockup strategy to deliver power to the ground more efficiently. This reduces unnecessary slip in the torque converter, improving fuel economy and driving down heat in typical “unlocked” conditions.

Custom Fit Calibration

At PPEI, we take pride in our work. If there’s anything you’d like adjusted in your transmission calibration, we’ll make it fit your driving style — “Custom Fit!”

Installation Compatibility

This transmission tuning can be installed using EFILive or HP Tuners software for easy setup and maximum compatibility.