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2strokeYardSale

Pro Circuit quiet inserts

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I bought a 2007 WR450F with a Pro Circuit Ti-4 muffler. It's too loud. I Googled quiet inserts and there are a dizzying bunch available with not much info.

 

Does anybody know which particular quiet insert fits my muffler and whether it will actually help silence the noise?

 

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Called up PC and found out they quietest thing they have is part number PC-2100-09-4.0, known as the stainless quiet insert, which includes a spark arrestor. Supposedly 96 db.

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