Grizzly 660 "stock" muffler mods!
Dec 5, 2001 | 08:42 PM
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Trailblazer
Joined: Jul 2001
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Has anyone heard of riders making performance modifications to there stock exhaust(pipe). I've heard the following, removing the baffle for one and drilling holes in some plate found inside. Resulting in some nice gains, in essence "the stocker in pretty good with a few changes" Looking forward to the feedback.
Tony
Tony
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660, baffle, drill, drilling, exhaust, factory, grizzly, modfications, modifications, mods, muffler, performance, pipe, stock, yamaha
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