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I will try and get sound clips as soon as I can.
No noticable difference. The free flow of the muffler probably offsets the change in pipe diameter.
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2012 F10 550xi M Sport, Dark Graphite Metallic II, Black Nappa, Aluminum Hexagon Trim, Cold Weather Package, Ceramic Controls, Premium Sound Package, Luxury Seating Package, 30% Tint, Painted Reflectors
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