Sooooo the filter issue. ..
Tried 3 k&n on 2 different bikes (2007&8 ) same problem with all 3. All dimensions on the k&n were the same as a oe filter other than one..... The groove that goes round the bottom of the filter to locate the filter in position in the box is too shallow, around 2-3mm so therefore the lid will not close fully.
Cutting the plate is a very bad idea to get the lid closed as when you do up the centre screw it pushes the plate down to close the gap and lifts the filter out of position.
Just doing the lid up and accepting the gap is also a bad idea as I did this and tested with grease spray and it was easily making its way in soaking the inside of the lid.
Got a Pipercross today and it fits perfectly
Tried 3 k&n on 2 different bikes (2007&8 ) same problem with all 3. All dimensions on the k&n were the same as a oe filter other than one..... The groove that goes round the bottom of the filter to locate the filter in position in the box is too shallow, around 2-3mm so therefore the lid will not close fully.
Cutting the plate is a very bad idea to get the lid closed as when you do up the centre screw it pushes the plate down to close the gap and lifts the filter out of position.
Just doing the lid up and accepting the gap is also a bad idea as I did this and tested with grease spray and it was easily making its way in soaking the inside of the lid.
Got a Pipercross today and it fits perfectly

To become old and wise you have to have been young and stupid......