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Designed for current PPEI users who already have an AutoCal and Single Tune or Tune Pack. A FREE LML DST Switch is included.
2011 – 2016 Duramax LML
EFILive Custom Tuning
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The PPEI EFILive Allison TCM Tuning is a major benefit to all users regardless of their modifications. The TCM Tuning comes with an earlier lock-up strategy that ultimately allows for the truck to put all the power to the ground more efficiently than the stock TCM calibration would allow. As for those weekend warriors it can knock off .05 off your track times for stock transmission applications and even more time with modified/built transmissions.
The turbo upgrade is available for PPEI users who wish to make their current tune compatible with an aftermarket turbo.
Designed for current PPEI users who already have an AutoCal and Single Tune. A CSP5 or CSP4 switch must be used to allow switchable tuning.