Rano, there is a link somewhere but I can't remember, if you look into the bottom of the airbox there are bumps in an oval shape, I THINK you cut that area out with a hole saw and do the same to the filter bottom to line up the holes in the box. if you're usind a k&n you need to make a gasket to go between the bottom edge of the filter and the airbox so dirty air doesn't get through. rejetting should be necessary then as they said.
another mike
