Quote Originally Posted by Lishap View Post
Yeah cancel your ZZP order, ZZP PCM is trash, exhaust adds no performance benefit just mass drone. Get SD headers for like $200, a PCM tune from Overkill and drop to a 3.4......or just listen to ZZP and their lies and chip a piston, your call.
you need to clarify that statement because exhaust work is where many gains can be made. I think you meant catback, and even then there are situations where gains can be had, not every situation, but some.