Tune 2007 Mustang v6 after modified exhaust?
No need to tune. I have an 06 gt. I first installed my stinger axlebacks and later added an o/r h. CEL came on after the o/r of course. But later I added a jlt/xcal2 and brenspeed tune and am okay.
No tune necessary for that exhaust mod. Tune only if; adding a cai, going offroad midpipe, headers, delete plates, adding n20, or gears and wheels only if you want to keep your speedo adjusted properly.