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      03-14-2020, 10:17 PM   #8
Munchi435i
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Drives: 2014 Alpine White 435i M-sport
Join Date: Jun 2017
Location: Orlando FL

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Quote:
Originally Posted by AmuroRay View Post
Yeah, the MHD option selection does NOTHING. I have the M Sport exhaust, and the valve is actually closed all the time until conditions are met.
What is the m-sport exhaust? To my knowledge there is the stock exhaust that comes with all trim levels of 335i/435i and the M-performance exhaust which is an additional option.