6speedsd
New member
So I've been running the same tunes for a couple years now. Just sort of settled on the ones I have now. Shifting has always been a sore spot with what I have now, and it's time to correct that. Maybe it's been discussed and I didn't search enough, but looking over Matt's toons, I see he now offers the XX files for larger injector nozzles. (Maybe these have been out a while, and I've just been oblivious) I ran his SRL way back when I had stock everything. How do the XX files compare to the old SRL or SRL+? I'm assuming the xx full fuel is like other big tunes...early lockup, earlier shifts, ect?
