can i live with out a tune if...
Or check out your local, i'm sure there is a few in PA.
https://www.evolutionm.net/forums/northeast-region-40/
https://www.evolutionm.net/forums/northeast-region-40/
(When you say mail-in I think of sending your ECU to a tuner for them to reflash and send back to you).
Tscompusa is also a good tuner you should consider if you go through the email route.
oh gotcha.



