Will 450 pipes fit on a yz400f?

I've been looking around for a nice pipe for my 400 but not too many choices are out there. So i was wondering if a 450's pipe will fit on my bike. I went to dr. d racing and i picked a pipe and they have the 400 pipe in the same section as the 450. can someone help?

Some from the early '03-'05 models will fit. The '06+ won't. Some filing and tweaking is occasionally necessary, though. If you're curious about anything from Dubach Racing Development, call them and ask them. They'll tell you whether it will work or not.

Do not use the 450 it hase to pipe area.It will kill the bottom.Get a used 426 pipe will work better than most after market pipes.

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