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Old 10-28-2005 | 03:10 PM
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Ed_Moorman
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Default RE: Mac's mufflers/differences?
Has anyone recently tested the Mac's black muffler on a .46? I recall I did a single test several years ago on a Thunder Tiger .46 and either lost rpm or got nothing extra. I also remember I tested the .61 size on a TT .61GP and lost 500 rpm over the stock muffler. As a result of these, I ditched all my black Mac's. Maybe they have changed.

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