i spoke to kev a while back as i am in same situation as u stage 1 +2 dna and snorkel removed he told me should be ok short term till i get money for a power commander or kev mod.

spoke to my mechanic he just advised me to check my spark plug and see how bike feels i have since then done about 800 miles on several long runs everything seems fine fuel economy about same spark plug looks ok everytime i have checked and not noticed it to cause any problems with riding


that all being said i know when i add a power commander or kev mod it will tie all my modifications together so i would say as soon u have money grab a fuel modifier + the o2 thingas they will finish of bike nicely from what ive read and seen