does anybody knows if I can use a wr 400 or 426 header for the stock wr silencer?

Hi there I have a steel frame wr 450f (2005). I had an accident with a car and my header is completely bented. I found several wr 400 and 426 header in ebay, but not wr 450 at reasonable price.

here is my question, does anybody know if I can use a wr 400 or 426 header on my bike with stock exhaust?

many thanks for any help.

It'll fit but I think that if you go with the 400 header you'll have to remove it on every oil change in order to change your oil filter.

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