Magura clutch from 450 to 400

[Old Dirtbiker]

I have a chance to purchase a magura clutch from a honda 450 before its traded in.
Would this fit my 03 ex400 without any mods.
The buddy with the clutch (different state so I cant compare) no longer has the model # and I don't want it if it wont fit up.

Thanks in advance,