im assuming its something you put inside your air intake tube that supposively makes the air spiral into your intake or somethin like that correct? A densecharger is an entirely new way of induction... you remove your stock air box and put the densecharger in place of it. With this spiralmax dealy bob youre putting that INSIDE your intake tube... basically just adding something else that already makes a restrictive air box even more restrictive. However somehow you gain 30% better gas milage and up to 30hp!!!