These replacement dampers are for use with 2014-15 C7 Corvette Stingrays equipped with an E-Force supercharger system. They are the same dampers that are supplied with all E-Force Corvette Stingray Supercharger systems. Damper #15709 can be use to convert a wet sump oil system to a dry sump system and #15719 can be used to convert a dry sump oil system to a wet sump oil system. Includes damper and bolt.