Exhaust fitment question

Will a complete exhaust from a 02 YZ450F fit a 04 WR450f? Just wondering since I can get one super cheap.

aside from the muffler mounting bolts in the then steel '02 subframe not lining up theres no reason why the old exhaust wont fit the new bike, the head casting is the same so you should be sweet there. like i said though, its just the mounting points in the frame that have the potential to cause dramas, though i have seen the forward frame bolthole modified on a wr400 to take a muffler from a '02 426. its amazing what you can do with a thick washer and a welder!

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