PPEI Transmission Tuning PP-CMC-TT | 2007-2009 Cummins 6.7L 68RFE

PPEI Transmission Tuning

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

The refined shift points eliminate the low-RPM “lazy” feel that forces drivers to stab the throttle for a downshift — not cool and 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 upgraded turbo.

Along with improved shift points, PPEI refines the torque converter lockup strategy to deliver power to the ground more efficiently. This improves fuel economy by eliminating unnecessary slip in the torque converter — which also reduces heat buildup in typical “unlocked” conditions.

At PPEI, we take pride in providing truly customized tuning solutions. If there’s anything you’d like changed in your transmission calibration, our team will tailor it to fit your driving style — “Custom Fit” performance.

Compatible Platforms: EFILive & HP Tuners