Vortech offers a bargain priced entry-level supercharger systems that allow you to build and improve as your budget allows. Upgrades can be matched to meet your end goal whether street scene or all out racer. The entry level 5-6 PSI, V-3 SCi model is perfect for the budget minded enthusiast. The system can be upgraded later to higher output systems. The Mustang systems feature an ultra-efficient V3 Sci compressor. The "i" stands for improved and with its new, patented oil control system and state of the art centrifugal compressor stage this V-3 Si literally blows away the competition. High efficiency means less heat is being generated, drive power is reduced and more net power is produced. Less heat also means better durability. All V-3 series superchargers have a self-contained lubrication system that makes installation fast and easy.