Has anyone gotten a Trifecta tune for their 17 or 18 8 speed? I have read a bunch of threads and other stuff online and it appears they are able to tune the T87a without unlocking or removing the TCM like HP Tuners requires. Just wanted to see if anyone has tried it. I know they have awesome reviews for the gm cars and suvs, especially the colorados, acadais etc. $400 for a tune with a flash loader seems like a pretty good deal, if they are legit.
Any feedback would be great! I have about 8k miles until my warranty is up, so trying to plan ahead.