Emissions Delete and Performance 6.6 Duramax Efilive Tunes

A Selection of Efilive Performance and Emissions Delete Email Tunes for GM Duramax trucks.

Purchase as listed To be flashed with YOUR AutoCal or FlashScan.

add an AutoCal V3, with included VIN license, to your order and we will ship the AutoCal pre loaded with your tune.

Also available is our loaner AutoCal with included  VIN License

Stock LML files by VIN available