Head pipe applications?

I need a new stock head pipe for my '03 YZ 450, so I'm trying to find one on eBay. The one I found is off an '02 YZ 426, and says it'll fit all 400/426/450 YZ's and WR's. Is this true? Do they all take the same Ti head pipe? All the part numbers in the Yamaha Parts Catalog are slightly different, but who knows?



Not sure about the older pipes, but any of the pipes from the YZ, WR or YFZ 450's from 03 up to 05 (at least) will work. The only difference is the YFZ pipe is stainless. Both the WR and YZ pipes are Ti.

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