*** IN STOCK SHIPS TODAY *** RBS stocks a full line of replacement parts for all makes of supercharger snouts. These seal cups are designed for late model SSI blower snouts. There is no way to know if you have one or will need one until you get the blower snout taken apart and assess what parts you are going to need to rebuild your blower snout.
Seal cup measures 2.500" O.D., .305" thick and 2.320" I.D. Seal cup is made from billet aluminum. Be sure to check out #700-037S if you need a blower snout seal.