First mod done to the FN2, had it less than 48 hours before starting to dismantle it and change things 
I've replaced the standard vinyl gear gaitor, which had just started to split (like most do after a few miles) with a properly made real leather one bought off ebay, and also replaced the standard gear knob with a Skunk2 billet heavyweight shift knob. It now looks like this....
Pretty fiddly job but a nice improvement, nicer in the hand, better looking, and the extra weight makes it feel a little slicker when changing quickly.

I've replaced the standard vinyl gear gaitor, which had just started to split (like most do after a few miles) with a properly made real leather one bought off ebay, and also replaced the standard gear knob with a Skunk2 billet heavyweight shift knob. It now looks like this....
Pretty fiddly job but a nice improvement, nicer in the hand, better looking, and the extra weight makes it feel a little slicker when changing quickly.