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The BMW Range
3 Series
E90, E91, E92, E93
Popping Sound from Performance Exhaust
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<blockquote data-quote="MadZiZ" data-source="post: 645228" data-attributes="member: 27737"><p>Hi bro i think that popping sound is normal for the release of back pressure once the flow is negatively reversed. No issue with engine should be at all. Like for example: turbos no back pressure is the best, for NA cars usually some back pressure is better as it helps with the power delivery for pickup and acceleration. Just my 2 cents noobie feedback ya....LOL.</p></blockquote><p></p>
[QUOTE="MadZiZ, post: 645228, member: 27737"] Hi bro i think that popping sound is normal for the release of back pressure once the flow is negatively reversed. No issue with engine should be at all. Like for example: turbos no back pressure is the best, for NA cars usually some back pressure is better as it helps with the power delivery for pickup and acceleration. Just my 2 cents noobie feedback ya....LOL. [/QUOTE]
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The BMW Range
3 Series
E90, E91, E92, E93
Popping Sound from Performance Exhaust
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