1. pinkpiggy

    Single muffler duplex exhaust for nonM

    Hello guys. I know there are like "few" topics about dual exhaust for non-M :) and I know the best solution (i would love to make, but its way too expensive - trunkfloor on realoem costs like $2300 - crazy price :/ ) for duplex, dual exhaust on non-M z3 is swap the non-M floor for M floor as...