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      12-01-2020, 12:00 PM   #25
kcdedric
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Drives: E90 M3
Join Date: Apr 2011
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Quote:
Originally Posted by steven_s View Post
Sounds much better. To clarify can you show a pic of what you mean exactly with the bottom section of the cowl that was removed?
Certainly. Both initial videos with the Eventuri and Karbonius were also done with the BMS cowl filters but the bottom section of the cowl was still installed. That looks like this:



In the most recent video with the Karbonius I removed the bottom section of the cowl and the weatherstrip that seals against the hood. This leaves no barrier between the BMS cowl filters and the engine bay which results in more noise. That looks like this:

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