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      09-30-2019, 07:55 AM   #102
smithf80
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Drives: '18 F80 M3 6MT
Join Date: Mar 2014
Location: Long Island, NY

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2018 F80 M3  [5.00]
Quote:
Originally Posted by Nikopoup View Post
Hi guys. I want to ask you a question. I have a 340i with the akrapovic exhaust system. A friend of mine has a 328 2012. He asked me to give him my stock exhaust. We made a quick experiment. We placed (not installed) the 340 muffler and connected only the actuator. He put sport + but the valve didn't open. I believe that without the gas pressure it can't open but I am not sure. What do you think?
It's electronic, it doesn't need any pressure, however, some people have reported that the valve doesn't open without a slight tap of the throttle.