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Vortech Superchargers has sponsored the class since its inception in 2001. Here is the company's shining star for Xtreme Street competition, a V24 Xi-trim blower mounted on a geardrive system. The NMCA officials allowed the use of geardrives for all centrifugal blowers in 2009. The Xtreme Street rules limit the centrifugal blowers to certain models and most blowers are from Vortech or ProCharger.