I used 2x3 and did perimeter frame, welded it to the rocker then did 90 over to frame rails in the front. Gonna weld a tube from that 90 up up to the strut tower and another to the back of the strut rod bracket (cut the lower part of the frame rail off) and another back at an angle back to the frame rail. The floors were gone and had to come out anyway and I am planing on cutting out the outer rocker and fitting 2.5" exhaust into the recess for the side pipe look that isn't hanging off the car. The jegster hoop sits perfect on the rails and runs back to the rear strut towers and down to the rear crossover factory frame rail and the door bars will attach to the 2x3 frame rail. Should be pretty strong and add a ton of clearance under my slammed car(floor boards used to rub on everything.