exhaust question for you?

does anyone know if the exhaust header and can or just the end can off a 07/08 alloy framed wr 450 will fit a 05 steal framed wr 450?

secondly on the header of some pipes there a over sized large chamber what sort of difference in power do these make?

thanks guys :thumbsup:

Not sure about the can but I had a header off of a YZ426 on my 07 Wr450. I think it came off of a 2002 YZ426. Anyways it did fit but it was tight, almost rubbed against the top of the clutch cover. As far as the chambers on some new exhaust headers, I believe it help reduces noise and helps with more flow. Not totally sure on that though!

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