Anyone install a catback or different muffler on their 2012 yet?
So far the only cutback I'm finding is by Gibson... Anyone swap the muffler on their Pentastar yet?
Do we know what kind of performance gain/loss WK2 3.6 owners with exhaust mods are getting?
Do we know what kind of performance gain/loss WK2 3.6 owners with exhaust mods are getting?


