Fizzle ZR4 Supercharger Impeller (33+ PSI)

Introducing the king of drop-in supercharger impellers!!! This next generation technology integrates the supercharger nut to allow for maximum blade height and achieve the ultimate acceleration and top speed! Our patent pending Fizzle ZR4 Supercharger Impeller will boost 30+ PSI @ 9500 RPM and will max out at more than 33 PSI at higher RPM levels. Weighing in at less than 115 grams, this lightweight, precision machined billet aluminum supercharger is Hydrodrags Spec Class legal and is a game changer for drag racing. There is no machining required to the supercharger housings in order to fit this wheel. It is 100% drop-in to the factory Yamaha SVHO supercharger housing. Typical gains are 14+ PSI more boost pressure and 900+ more RPMs over the OEM supercharger wheel and massive acceleration gains. An aftermarket heavy duty supercharger shaft kit must be installed to use this high performance aftermarket supercharger impeller.