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      11-26-2019, 12:56 AM   #1009
fanatic1
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Drives: 2019 M4 CS
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Quote:
Originally Posted by cntzl View Post
I closed the valves and unplugged the cables so that they don't open at WOT.
Did the same with exhaust valve controller but still blew sound. MPE? Definitely would be OK with stock exhaust and valves closed
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