Hey, I need some help again. I am going to have to buy a rev box for my YFZ450 and I need to know what is the best one!!! And quick!!! Rattle Snake weekend at Little Sahara is in two weeks and I need to get it ordered and put on before I go. I have to beat my buddy with the same bike.

 

Vortex or Dyna, all others are crappy Procoms which have been known to fell quite often.

 

Why are you getting a 13 tooth front sprocket? I am guessing that it is because of the cam mod. I have a 15 tooth comming because I heard that you gain too much bottom end with the cam mod and don't have enough top end, thus raising the sproket one tooth from 14 will give you a little less bottom and more top to complement the cam mod. Let me know your comments!!

 

Actually its the opposite, retarding the exhaust will give you more top end with a sacrafice of low end.