Re: Exhaust size
3 in collecter from headers > to 3 in high flow cat > to one flowmaster ( don't know what sereies) 2 2.5 pipes coming out . sounds & performs great . there is something to overkill on to big an exhaust . I would say unless yoiu have 500 plus horses , stay with 2.4-2.5 out the back .
Oh , 408 warmed up , but nothing crazy
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