I have a '20, and I did BT Moto flash with 1/2 exhaust. I ran the flash with stock exhaust for a couple of months and it was a great improvement. After removing cat for track and using 2nd flash (you get 2 with BT Moto device) it is even betterSo I’m getting a 22 r1 in august and I’m curious if I put a slip on on I know I don’t “need” a tune but I’d like one . What and where should I look for that? Ecu flash? Power commander? Dyno?