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I just removed the charcoal filters and have the M performance Titanium akrapovic exhaust on my M6, what should I expect in terms of performance and exhaust sound? How much more restrictive are the OEM filters than the BMC performance filters?
By the way, when I removed the yellow filter underneath was a "snorkel" and not an opening that I could cover, just FYI.
Thanks again for the pointers
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