I read in Dirt wheels that if you want more snap to your raptor while still stock you should rejet it is that true??? It was like take the 145 and put it on the 140 side and and put a 150 on the 145 side I think? Anyone else remember reading this?? What do you think??Thanks

If you went to a 160/165 main jet and carve out the top of your air box you could get a 3 horsepower increase with the stock pipe and air filter. Your better off getting a high flow filter and a jet kit.