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quiet info needed

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What muff's out there will get a YZ-250F through the sound checks? I'm not talk'n maybe! I'm talk "will" get me through an CC,desert,ISDE sound check safely. I'm thinking about doing some off road races next year.

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I have heard good things about Pro Circuit pipes with quiet cores inserts. Are there any tips available for the YZ pipe like all the ones you can get for the WR?

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I run an FMF Q and have always past sound check, 96 dec was the highest i have tested at and 91 the lowest.I really like the pipe it has performed well no jetting needed and Rocky mountain has the best prices on them, even cheaper than can be had from FMF directly.

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I run an FMF Q and have always past sound check, 96 dec was the highest i have tested at and 91 the lowest.I really like the pipe it has performed well no jetting needed and Rocky mountain has the best prices on them, even cheaper than can be had from FMF directly.

Thanks :thumbsup:

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