A stainless steel replacement to a steel problem. Made from 316 stainless steel and low sheen vibratory tumble polish. This is a direct replacement to the Vortech steel volute retainers that often (and quickly) corrode or rust when the zinc coating breaks down. Also added to the design is a more rounded lower edge to better clear tight clocking clearances that would otherwise require a few belt sander trips to clear. Includes 3 stainless steel volute retainers for Vortech Superchargers.