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Old 05-21-2008 | 10:34 PM
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millertym2000
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From: spiro, OK
Default mac's mufflers?
Hi guys, I have a ST 40 and a ST 75. I hate the big silent muffler they put on these. My question is will the Mac's muffler help the engine. I've herd a lot about the ST carbs and mufflers being crap. what do you think?
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