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      01-12-2007, 11:28 AM   #19
ICALL
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Drives: 2011 550i Carbon Black M Sport
Join Date: Oct 2006
Location: South Florida

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I believe I read someone else stopped the valve from closing in the "Under the Hood (NA-Engine) / Drivetrain / Exhaust Modifications
Everything engine and drivetrain related" forum area and they said the car's performance deteriorated. Explaination was the closing of the exhaust increased torque at lower levels.

Replacing the exhaust system shouldn't be a problem, but anyone looking to just stop the valve from closing may have a problem

Disclaimer: I know NOTHING about this stuff. Only trying to reiterate what I read on another post. People with more knowledge, feel free to chime in.
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