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      08-10-2018, 12:44 AM   #3
wyatth
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Drives: E90 ZCP
Join Date: Dec 2007
Location: Bay Area

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Resonators don’t quiet down the exhaust much, they mainly just smooth out the sound waves (rasp). Either swap mufflers or remove cats (which break up sound waves better than resonators but not as well as a muffler).
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