This is a stock run vs. reverse meg. slip on silencer, rejetted, and no air box lid. Note: Due to the long head pipe any slip on silencer needs to be reverse meg. or you will lose a lot of top end. Also beware that removing the air box lid will make this bike run very bad unless you make drastic jet changes. I will post the proper jet changes as soon as I have more testing done to confirm the needed settings.