PPEI Transmission Tuning PP-LM2-TT | 2020-2022 Duramax 3.0L LM2

PPEI T93 Transmission Tuning for LM2 Duramax

Extend your LM2 Duramax transmission’s life and increase your fuel economy with PPEI’s T93 Transmission Tuning! A must-have upgrade for tuned trucks running additional torque and performance modifications.

PPEI was the first to offer transmission tuning for these new Allisons — and we haven’t let off the throttle since!

Refined Shift Points

The refined shift points eliminate the low-RPM “lazy” feel that forces the driver to stab the throttle for a downshift — not cool, and a fuel economy killer. For trucks equipped with larger turbochargers, PPEI Transmission Tuning is essential to return the engine to the proper RPM range to match the new turbo’s torque curve.

Optimized Torque Converter Lockup

PPEI’s transmission calibration refines the torque converter lockup strategy to put power to the ground more efficiently. This improved lockup eliminates unnecessary slip, enhances fuel economy, and reduces heat buildup in typical “unlocked” conditions.

Increased Line Pressure for Maximum Holding Power

Lastly (and possibly the greatest benefit) is the increase in line pressure PPEI provides. Higher line pressure boosts the transmission’s holding capacity by clamping clutch packs together with greater force. This ensures tuned and towing trucks enjoy reliable performance and longevity for years to come.

Installation Compatibility

This tuning package can be installed using the following supported hardware:

• PPEI RTD
• HP Tuners MPVI2 / MPVI3

PPEI Transmission Tuning for the LM2 Duramax delivers smoother shifts, higher torque capacity, improved drivability, and reduced heat — the perfect solution for any tuned or towing application.