[Red Mustang Gt 46]

Glad to hear your going with a full cat-back. A pro-chamber with dumps sounds like garbage (IMO). I had a youngin try to intimidate me with the same set-up...I told him it sounded "bad", he replied "thanks"...I said "no, I mean like crappy bad". Then the word wars were on and I had to school him on the street (By two car lenghts). Dumps sound good on a mid-high compression engine with a little lope to it, again IMO.