PPEI Transmission Tuning PP-CMF-TT | 2019-2024 Cummins 6.7L 68RFE

PPEI Transmission Tuning for 2019+ Ram 6.7L Cummins 68RFE

Extend your transmission life and increase your fuel economy with PPEI Transmission Tuning — a must-have upgrade for tuned trucks with added torque and performance modifications.

The refined shift points eliminate the low-RPM “lazy” feel these trucks are known for, removing the need 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 new turbo.

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

Lastly (and possibly the greatest benefit) is the increase in line pressure PPEI provides. Higher line pressure increases the transmission’s holding capacity by clamping the clutch packs together with more force — giving tuned trucks or those towing heavy loads the confidence to perform reliably for years to come.

Installation Compatibility

This tuning package can be installed using the following platforms:

• EFILive AutoCal V2/V3
• EFILive FlashScan V2/V3
• HP Tuners MPVI2/3
• EZ LYNK AutoAgent 2/3

Important Flashing Protocol Information (2019+ 68RFE)

When flashing the 2019+ 68RFE transmissions, the flashing protocol also flashes the Engine Control Module (ECM). If an engine calibration is already installed prior to installing the PPEI Transmission Calibration, the PPEI TCM Calibration will include a stock engine calibration that will overwrite any previous tuning.

If you reinstall a previous engine calibration after installing the PPEI Transmission Calibration, it will erase the PPEI Transmission Calibration. To retain both calibrations simultaneously, both the engine and transmission tuning must be purchased and installed from the same calibrator.

Note

A Cummins Unlock Cable is required for Engine & Transmission Tuning with EFILive or HP Tuners. Please select this option if you do not have one already.