6L80 / 6L90 Off-Board Programming Harness
Item Number: PH6L80
Complete harness kit for programming and tuning 6L80 / 6L90 TEHCM's off the car. Easily download the programming off of the old TCM and upload it to the replacement TCM.
Save time and money by programming and/or tuning off board! No credits or TDS subscription fees required.
Easy to follow instructions included!
Programmer not included and this product will not work doing OEM programming or reprogramming on the GM website.
Easy Programming Instructions