Hi guys, wonder if anyone can help. I bought a new exhaust back box etc for my 1999 c4 996. Bought a stainless steel one custom fit but it's too loud. I sound like a chav with a bean tin on the back but two of them!! Anyone know why a, it's way to loud and or b, where I could get a cheap standard replacement? Porsche want £1300+ for a replacement set but can I get it done cheaper. Any help gratefully received