All Corbeau fixed back racing seats come equipped with 5-Point harness capability and come in a variety of sizes for both large and small drivers. Most Corbeau seats that recline are equipped with shoulder harness slots and for only $29.00 Corbeau can add a submarine slot for your 5th strap. Depending on how much support you want and where you want that support, Corbeau is sure to have a Mustang seat that will meet your needs. You may want aggressive shoulder and kidney bolsters, but not so aggressive thigh bolsters. You may want aggressive thigh and kidney bolsters, but not so much aggression in the shoulders. Corbeau has designed Mustang seats for all these scenarios and are confident they have the perfect Mustang seat for you.