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      09-21-2011, 11:22 PM   #17
c_jeong89
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Drives: E90 TiAg
Join Date: Feb 2009
Location: Irvine/Bay Area

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Removing secondaries will provide slightly louder and deeper tone. I would keep the resonator though. I haven't done it personally since the muffler delete is loud enough for me but by all means you should try it if you're trying to make your car louder.
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