wr exhaust vs yz exhaust?

Does anyone know if the muffler off of a wr400/426 will fit on my 2000 yz426? Has anyone switched these exhausts before.Probably more popular mod to put yz exhaust on wr for perf.(if it fits) but I need to quiet mine down. Any info would be greatly appreciated!

Should be no problem at all. I have a 2000 YZ pipe on my 2001 WR.


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