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      12-22-2011, 03:03 PM   #3
tp550i
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Drives: 2011 550i Sport
Join Date: Jul 2011
Location: Tampa, Florida

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just my 0.02
but I'd install it right out of the box per Magnaflow and drive it for a while. Exhaust sound and drone are so subjective to personal tastes.

If you then decide you really can't stand it, replace the Magnaflow resonator with the Vibrant Ultra quiet resonator.
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F10 550i Space Gray | Dinan Stage 5 | Eisenmann Race | ACS springs | 20" Ferric Grey 312 - Michelin PSS