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Browse the wide selection of products we have available for your 2004.5 – 2005 Duramax LLY.
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Our EFILive Custom Tuning is backed by over 9 years of vehicle testing and precision adjustments. VIN Licenses are required to tune additional vehicles per tuning module. Device not included. Emissions Compliant tuning only. Entered VIN must match the VIN in the ECM. A new purchase is required for VINs that do not match.
2018 Cummins: A Cummins Unlock Cable is required for tuning.
Our EFILive Custom Tuning is backed by over 9 years of vehicle testing and precision adjustments. VIN Licenses are required to tune additional vehicles per tuning module. Emissions Compliant tuning only.Entered VIN must match the VIN in the ECM. A new purchase is required for VINs that do not match.
Flashscan V2/AutoCal VIN Licenses are required to tune additional vehicles per tuning model (GM or Cummins). Each VIN License allows you to tune one engine/transmission controller. Serial Number & Auth Code Retrieval required.
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.
Designed for current PPEI users who already have an AutoCal and Single Tune. A DSP5 switch must be used to allow switchable tuning.
This is a bone stock emissions equipped unlocked tune file that you can order to make your own custom modifications!
The turbo upgrade is available for PPEI users who wish to make their current tune compatible with an aftermarket turbo.
GM upgrade license for blue and black V2s. This is for Duramax tuning. Start tuning today!
The single tune upgrade is available for current PPEI users that wish to change their current tune’s HP level. Select your vehicle to view the options that are available to you.
Showing 1–9 of 15 results
