Thanks guys, I appreciate the help.. I was not sure if there was a something in the kit to block off the the factory airbox to force all of the air through the shaker. Now I know it just supplements the the airbox air and not replaces it..I'm still wondering if I built a fully enclosed box for my steeda cai, if it would be enough air (through the shaker) to satisify. I guess if it is not, I could always make an opening or just use the steeda steel shroud..