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Modified stock exhaust for X5M.
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08-24-2015, 07:11 PM
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Cattivo
FDNY Engine 55
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Drives: X5M, X5 50i Msport, EscaHoe
Join Date: Jul 2014
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I used 12awg copper wire to tie the actuator arm open on the exhaust valve on my OEM exhaust and it sounded much better on cold start and at or above 3k rpm...but straight pipes still sound way better
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