06' carb on 04' bike

[europe450r]

i got a fcr carb. from a 06' trx 450r. i want to put this carb. on a trx 450r from 04'. what does i have to change? another filter box? or an adaptor between the filter box and the carb.?

sorry for my bad english, i speak dutch

[HB-Roost]

From what I understand, you can either buy an adapter to run your stock airbox (I believe NOSS makes one?), or you can run an 06+ airbox. The 06+ airbox is supposed to be a little more free flowing.