pod filters

Rain maybe but not likely. Dust, not unless the filters are crappy cheap ones. Rejet most likely as you'll be running slightly leaner which isn't healthy long term for the engine. Are you doing any exhaust mods too as its best to tackle the fuelling after changing the inlet and exhausts together.

Oh and if you have any crank breathers or vacuum pipes that would normally go through a filter box or intake then you might have to scratch your head about how to keep these working properly.

 

Stick one of these on the end of the breather hose. https://www.ebay.co.uk/itm/283615945462?hash=item4208d3e2f6:g:ew0AAOSwxY9df0eo