Whats the Diff between Stage 1 and stage 2??

[cmracer15]

OK i hear people talking about stage 1 and stage 2 jet kits.... What is the difference?? I thought a main jet was a jet... change the size and go... but then again i gues sim wrong?

[TravEX]

Stage 1 is for factory airbox and exhaust.

Stage 2 is for aftermarket exhaust and open airbox

The Stage 2 is what I have in my EX, no big deal, just a different needle and main. Buy them seperately and save about $50.