Magnaflow BMW 645 Racing Dynamics exhaust system Magnaflow custom built stainless steel Exhaust system

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BMW 645 with Eisenmann
BMW 645 with M6 Endschalldämpfer Eisenmann 4x 120x77 mm rundoval

BMW 645CI Catback MagnaFlow Exhaust Part # 16560
Sounds just right to me not to loud even with the top down. It sounds even better when driving it gets a bit louder and deeper.

BMW 645ci sunday fun

bmw 645 exhaust sound