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      01-10-2019, 06:02 PM   #37
Whipple
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Drives: 2015 BMW M6 Gran Coupe
Join Date: Jun 2011
Location: New York

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Quote:
Originally Posted by G3t0ut View Post
I checked my valves because I was going to start this mod, and my flappers were open at idle on their own. am I missing something here? do they close at some point? just seemed weird to me.
I wanted to bump this thread because it still seems unclear,I also checked my valves at idle and they were open some people saying there’s open at 3k rpm ,
Do they close again when driving slow?
I wanted to install the exhaustmeister but if there open all the time after cold start what’s the point
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