Kawasaki VN1500 VN1600 Injection models Hypercharger KURYAKYN K9404 PRO-HYPER CHRG FOR 1500 VULCAN COMPLETE KIT The Pro Series Hypercharger was designed for massive air-hungry V-Twin mills that like lots of RPMs. If your motor needs air, here's 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.