Thread: 1st Ever F10 M5 RPi GT Exhaust with Muffler Delete!!!
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      02-25-2013, 06:30 PM   #83
BIG~BLUE~BMW
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Drives: Nissan GTR,F10 M5
Join Date: Jan 2013
Location: Nj and fl

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Hey do you guys need to run a tune on the m5 to run straight pipes. And are you guys running decatted down pipes too???? Thanks love the way it sounds
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