I'm redoing my entire exhaust when I do a manuel swap on my 325IS and was thinking about going the route of euro pipes/no cat:maybe a euro muffler that they fit in instead/possibly scorpion catback? Not sure about that part yet (if anyone has advise about that i'd appreciate it). After doing some research it seems like the part number on the manifolds of euro cars with no cat and U.S. cat cars are different. Does anyone know if this will affect the setup? Or does it not make a difference?
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