I found YouTube for F10 550i with X-Pipe and stock mufflers. It sounds pretty good. 
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00 323ci blk, 03 S2000 sil, 04 525i sil, 05 X5 beige, 07 328i sil, 08 C350 gray, 10 MCS Conv gray, 10 MCS red, 12 ML350 BT sil, 13 650i GC blue, 12 E350 Wagon 4Matic blk
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