I just installed a pro flow with K&N and a stage 2 dyno jet kit.The rest of my quad is all stock,including stock pipe.I would like too run with the lid off for more power(and that awesome sound).I installed the dynojet kit with 142 and 144 jets,im at sea level.It seems too run good,no bogs or nothing,even with the lid off.With the airbox off,do you think I should go bigger in the jets? Or do you think im fine? I dont really have the area by my house too do full throttle tests and im going upnorth for some riding next weekend,thats why I''m asking,any input would be great thanks.

 

It would be my guess that at sea level you should jet up to 144 and 146, remove the lid, and see how it runs. You may be fine how you are, but I think you can go a bit larger. No larger than 144 and 146 until you get rid of that corked stock exhaust though.