2004.5 - 2005 Duramax LLY
Browse the wide selection of products we have available for your 2004.5 – 2005 Duramax LLY.
Showing 1–9 of 35 results
EFILive Custom TuningEFILive Custom Tuning
Our EFILive Custom Tuning is backed by over 9 years of vehicle testing and precision adjustments. VIN Licenses are required to tune additional vehicle per tuning model. Complete the steps below to order your custom tuning. Device not included.
Brands: EFILive, PPEI(0 reviews)$0.00 Select options
EFILive Custom TuningEFILive AutoCal w/ Custom Tuning
Our EFILive Custom Tuning is backed by over 9 years of vehicle testing and precision adjustments. VIN Licenses are required to tune additional vehicle per tuning model. Complete the steps below to order your custom tuning. Device included.
Brands: EFILive, PPEI(0 reviews)$0.00 Select options
EFILive Custom TuningEFILive VIN License
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. How to obtain your AutoCal Auth Code & Serial Number.
Brands: EFILive, PPEI(0 reviews)$125.00 Select options
- EFILive Custom Tuning
2001 – 2010 Allison TCM Tuning
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.
Brands: EFILive, PPEI(0 reviews)$199.99 Select options - EFILive Custom Tuning
EFILive Tuning Turbo Upgrade
The turbo upgrade is available for PPEI users who wish to make their current tune compatible with an aftermarket turbo.
Brands:(0 reviews)$50.00 Select options - EFILive Custom Tuning
EFILive Tuning Injection Pump Upgrade
The injection pump upgrade is available for PPEI users who wish to make their current tune compatible with an aftermarket injection pump.
Brands:(0 reviews)$50.00 Select options 
EFILive Custom TuningBase Stock Tune File
This is a bone stock emissions equipped unlocked tune file that you can order to make your own custom modifications!
Brands: PPEI(0 reviews)$49.99Select options- EFILive Custom Tuning
EFILive Single Tune Upgrade
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.
Brands: EFILive, PPEI(0 reviews)$50.00Select options