[07gsxr1000]

Just wondering whats the difference in the needle you get with a stage 2 dynojet kit and the other 2 mentioned above, also im running a airbox lid and a 165 when i pull it off and take a quick ride seems like its a little fattened on the big end boggy i guess. Bought a keihn .162 from local dealer going to give that a try same setup thats in my buddys 07 with i just have a newer jardine pipe and hes got that quick mixer screw adjuster and a boysen quickshot.