The Pro Series Hypercharger was designed for massive air-hungry V-Twin mills that like lots of RPMs. If your motor needs air, heres the place to start. The inlet is cavernous. The filter area has been increased by a full 50%. Internal shapes have been tweaked to allow increased flow and velocity. The Pro has a look all its own. All edges are radiused for a more streamlined appearance and a completely new cover with speed lines completes this picture of performance. The Pro Series Hypercharger will work on smaller stock engines also, but will perform about the same as the standard Hypercharger. These kits contain an all chrome Hypercharger, mounting kit and carburetor jetting necessary for a complete, sanitary installation.