This is a replacement gasket for the E-Force supercharger lid cover. Will fit the following applications: Camaro systems #1596, #1597, #1598, #1599; Corvette systems #1572, #1573, #1574, #1575, #1576, #1590, #1591, #1592, #1593, #1594, #1595; Truck/SUV systems #1564, #1567, #1577, #1578, #1579.