Thread: what gives us the best exhaust sound?*650igc*
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      01-06-2017, 12:04 PM   #1
doughboy650gc
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Drives: 2013 650i grand coupe
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what gives us the best exhaust sound?*650igc*
I've been reading up on this for a bit and can't decide whether I'm better off deleting just the muffler or muffler and resonator an then add quad tips thank you in advance!
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