Our 6-point roll bar is intended for drag racing, and conforms to the NHRA and NMRA rules. Designed to fit the stock Mustang interior, this roll bar has door bars for additional side impact protection. The door bars are removable; they bolt to the floor, and are secured to the main hoop with one bolt. Easily installs in hardtop S197 Mustangs without welding inside the car. The Roll Bar is Chrome Moly and includes Dual Swingouts. Powder Coated Back.