its a doddle mate, even i have taken the airbox off and re-fitted..

all you need remove is the tank, the bellmouths (1/4 turn and they pop off and they pop off) release the airtubes from the little clips on the airbox sides and undo the six bolts holding it in...

just pop the new airbox on, reconnect everything and you are done...

filters aren't an issue as unless you have changed your airtubes they should be in those anyhow ....

hope that helps ...