From the top of my head..... OE Airbox Removal:-
1) Take off Engine cover (4 x Plastic lugs (1/4 turn))
2) Loosen Jubilee (SP.) clip on the LH side
3) Unclip the 3 connectors from the airflow meter
4) Now, you need your socket set (possibly with an extension). Undo the higher nut at the top of the airbox (13 mm I think??), & then the lower one at the bottom.
5) You should now be able to wiggle off the airbox.
6) Now take off the plastic airfeed (1 nut) which leads down towards the headlight.
Part 2 Later.....