Pro Circuit quiet inserts

1 reply to this topic
  • 2strokeYardSale

Posted March 15, 2016 - 10:34 AM


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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  • 2strokeYardSale

Posted March 15, 2016 - 11:01 AM


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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