Right, I've currently got a standard exhaust system with a custom 182-style backbox (passenger-side mounted backbox feeding 2 exit pipes, 182-style).
I ideally want to keep the backbox but upgrade the cat-back to release any small amounts of power there are to be had... is there any point getting a cat to backbox section made up by, say, ProSpeed?
I ideally want to keep the backbox but upgrade the cat-back to release any small amounts of power there are to be had... is there any point getting a cat to backbox section made up by, say, ProSpeed?