Brothers Performance has top quality 1999-04 Mustang head swap gasket kits and head gaskets from some of the best manufacturers, such as Ford racing and Fel Pro. If you have ever had blown a head gasket then you know what a hassle it can be to replace them, so be sure to use the right gaskets the first time. Whether you’re building a high performance street car or an all out race car, we have the right 1999-04 Mustang head gasket for you. Dont forget the bolts !