Ok i want to try get a bit more get up and go out of my Xt now.

for now i want to try stay with the stock pipes, so from what i've seen the air box is the way forward.

I've tried a K&N and snorkel out so i guess my next step is a stage 2 air box but i'm concerned how "waterproof" this is. for example at work last night with the bike parked up how it was the rain would have been driving at that side of the airbox for 12 hours. and local roads round here flood badly when there is prolonged rain. So would a stage 2 work for me or will it just get killed off?

I already have a PC and also experimenting with final drive ratios.