So, have a supercharged 2015 Scat, and my A8 is throwing incorrect gear ratio codes in two gears. The fluid is burnt smelling, and I'm going to change it if it can still be saved. there isn't any metal in it. The trans was tuned before I got it, but I think it was tuned for max effort. It never shifted very good under part throttle. If I got it retuned properly, and changed the fluid/filter; do you think it could be salvageable? I've been looking for a used one, but I can't find any. They are either for 2018 and up, or for a 5.7. I can't even find what the part number is for the 6.4 8hp70. Are the 5.7 and 6.4 A8's the same just different tuning? Any help would be greatly appreciated!