Athena Yamaha Raptor/Rhino 108mm Billet 4.250 x .043 Pro Copper Head Gasket 1975-buick-century-special-esi6145948 Built for up to 90

Built for up to 90 psi of sustained pressure

Replaces OE Decklid

Alternate muffler with Un-Notched necks is 40358

Outflows Factory Intercooler by 21%

Athena Yamaha Raptor/Rhino 108mm Billet 4.250 x .043 Pro Copper Head Gasket 1975-buick-century-special-esi6145948 Built for up to 90The head gasket is a complex and crucial technological component. To meet the ongoing needs of the market, Athena conducts meticulous checks on its head gaskets, both during the design phase and during bench tests. Athena head gasket can be produced using different technologies, such as metal elastomer combinations or multilayer with Athena steel and coating materials. Choosing a Top quality gasket is the first step towards a reliable engine. Perfect