Quantity: 1 - If you are removing the fuel injectors from the engine for service, the intake air horn has to be removed and the original gasket will be ruined in the process. Have a new gasket ready to go. *'89-'98 12-valve requires 1 gasket to refit the intake air horn. *'98.5-'07 24-valve requires 2 gaskets to refit the intake air horn.