PPEI transmission calibration for GM 6.6L LLY Duramax, model years 2004.5-2005, equipped with Allison 5-speed.
Designed to refine shift timing and torque-converter strategy for the listed application. Compatible flashing devices: EFILive AutoCal V2/V3; EFILive FlashScan V2/V3.
Confirm the vehicle configuration and flashing requirements before ordering.
You must login to post a review.
Write the First Review!