Grizzly 660 Muffler Mod. Mountain West

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03-08-2003 | 10:19 PM

blu660GRIZZ

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Grizzly 660 Muffler Mod. Mountain West

Has anyone done the muffler mod from Mountain West Performance. It involves a kit for $60.00 , drilling some holes in the stock muffler baffle and a new end cap. Does it improve performance? How much louder is it? Do you need to rejet? THanks ...

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06-22-2003 | 05:09 AM

tzmndvl

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Grizzly 660 Muffler Mod. Mountain West

Waht web site do you go to locate this kit you are talking about?

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