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RMBurrr

quiet exhaust

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While reading some older posts, I found Gray mentioning that the stock exhaust on an 08 yz450f is not that good.

 

Who makes the quietest slip on muffler for the yz?

If I want to make do with the stock exhaust for a while, what is the cheapest way to add a spark arrestor?

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Quietest one I know of for sure is the FMF Q4.

 

Both Pro Billet and Dr. D make spark arrestor end caps for the stock can.

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I can't speak for the others but my lexx mxe is pretty quiet.

It comes with a removable spark arrestor and a race tip.

I tried it with the arrestor out and I can tell there's quite a difference in power but it's just annoyingly loud...

You can tune it how ever you like. Plus, it's only $200....

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I can't speak for the others but my lexx mxe is pretty quiet.

It comes with a removable spark arrestor and a race tip.

I tried it with the arrestor out and I can tell there's quite a difference in power but it's just annoyingly loud...

You can tune it how ever you like. Plus, it's only $200....

I saw some of those while browsing ebay, Amazing how expensive some of the 4 stroke mufflers are! $200 sounds good compared to the cheapest FMF pipes.

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