Right guys, just to clear some things up.
Some of you asked whether or not modding your airbox would make it fail emissions testing for the MOT.
It doesn't - passed the MOT easily
Some also wondered about the SeeBetter bulbs from Canada being too bright and slightly tinted blue and therefore illeagal.
Again they passed the MOT
(I must admit it did fail the MOT - broken bracket on the anti-roll bar
Got it replaced - £250 )