Mishimoto has developed Ford Mustang aluminum radiator stays to replace the OEM upper radiator brackets. These are a must have for any Mustang owner looking to install an aftermarket radiator. The stock OEM Ford brackets have a rigid design that does not allow them to bend and move in harmony with the Mustang's uni-body when it is being torqued under hard driving conditions. These forces combined with the Mustang's rigid upper radiator brackets cause performance aluminum radiators to crack and leak. The Mishimoto Ford Mustang radiator stays are made out of thin gauge aluminum and use a softer rubber bushing, allowing the bracket to bend and move with the radiator, thus preventing damage. Designed to fit both OEM and aftermarket radiators.