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Upgrade your vehicle? Purchase tuning upgrades to get an updated tune file.
EFILive Custom Tuning
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68RFE automatic transmission equipped trucks have the option to order transmission tuning. With an electronically controlled transmission factors such as converter lockup, line pressure, and shift patterns can be supremely adjusted. Our TCM tuning is highly recommended to preserver to longevity of your transmission at higher HP and TQ.
Designed for current PPEI users who already have an AutoCal and Single Tune. A DSP5 switch must be used to allow switchable tuning.
The emissions upgrade is available for PPEI users who wish to make their current tune compatible with a modified emissions.