2007 - 2009 Dodge 6.7L Cummins 68RFE | Transmission Tuning by PPEI
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Extend the life of your 68RFE and improve fuel economy with PPEI Transmission Tuning — essential for any tuned 6.7L Cummins producing additional torque. Our calibration refines shift points to eliminate the low‑RPM “lazy” feel that forces unnecessary throttle input and reduces efficiency. Trucks equipped with larger turbochargers benefit even more, as tuning brings the engine back into the ideal RPM range to match the turbo’s torque curve.
PPEI also enhances the torque‑converter lockup strategy to deliver power to the ground more efficiently. By reducing unnecessary converter slip, heat is lowered in typical “unlocked” conditions, improving drivability and fuel economy.
We take pride in offering a Custom‑Fit approach. If you’d like adjustments tailored to your driving style, PPEI can refine the calibration to match your needs.
Installation Compatibility: EFILive and HP Tuners.
Important Note: EFILive support is limited to shift‑point changes only. If you need torque‑converter lockup adjustments or any advanced transmission tuning features, HP Tuners MPVI3/4 or RTD3/4 is the recommended and more capable tuning tool.
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WHO IS THE TUNER/CALIBRATOR
PPEI, also known as Power Performance Enterprises, Inc., is led by the business owner and lead calibrator/tuner Kory Willis. PPEI began calibrating/tuning back in 2008, specializing in Diesel Performance but has since expanded into the Gas and Powersports industries. Kory and the team at PPEI have set many world records along with continuing many industry “firsts”. We take pride in knowing that Kory not only prides his work, but also thoroughly enjoys setting expectations high for our team so our customers can have the best products available in the world.