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      02-05-2014, 10:48 PM   #27
NAVYPB
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Drives: 2016 X5;1991 M5
Join Date: Jan 2013
Location: Bay Area

iTrader: (0)

I listened to an M5 with and without it. Definitely sounds better with and based on that and positive feedback from you guys, I will be ordering it when I order the car Thank you everyone for comments
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