YFZ450R and YFZ450 interchangable parts?

[csr250r]

Hey anyone know what all parts are interchangable?

[tedwilley]

Handle bars and wheels, and probably headlights.
Same air and oil filters.
Almost every thing else is different.

[younggun95]

nope on the headlights.

use your 08 carrier,axle, brake, sprocket, and wheel hubs.

[dirtmerchant42]

are you sure on the air filter, the new one is huge

[younggun95]

Airfilter is same, but no reason to use 08 on 09. Exactly the same or other way around. But, the K&n filter that fits on the stock 08 cage fits on the 09 cage.
If you used one of the GYT-R adapters to use a bigger k&n or gytr filter, the 08 adapter will fit, but it takes some grinding to the air box and adapter. not hard though.