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Old 10-18-2012, 08:29 PM   #17
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What I Drive: 2001, Black&Yellow, ZX3

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Yeah I agree with ^ muffler won't add to your performance. Basically just a noise thing. If you add an exhaust you should probably add a cai or a higher flowing intake. The factory exhaust is made for the factory intake so if you don't have more comin in then a bigger exhaust won't really so much. Especially with the restrictive exhaust header.
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