exhaust pipes

I have a 2011 WR450f. I have the block off kit, 2006 yz450f cams, I also have the tps sensor disconnected. I have the stock exhaust. I was wondering if a 2006 yz250f muffler will mount up to the 2011 wr450f head pipe and subfram?

I don't think the head pipe will match the muffler.

with a little more research I came to the same conclusion. thank you tho!

I picked up an 05 YZ250F exhaust (M4) really cheap... I hope I can get it to work.

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