Custom exhaust? Hi, My Ti has a E46 M54B30 engine conversion. Now I am having problem choosing the exhaust. I think those after market one for TI won't suit me cos they would chock my engine? but will a Z3 3.0 one fit TI? And if I will need to go for custom make one, what size should I make them with? (NZ sucks, they don't make stainless steel exhaust..The guy in exhaust shop said stainless steel is not suitable for automotive exhaust...) Thanks |