cant find a tune with matching os number. any help would be appreciated. os 12606960
Printable View
cant find a tune with matching os number. any help would be appreciated. os 12606960
You just need your file updated for a 4l80?
https://forum.hptuners.com/showthrea...light=12606960
Read post #12, you might just have to do that.
12606960 is a flex fuel operating system and there are no factory 4l80 files to segment swap from. I can segment swap it for you for a fee. PM me if your interested.