I sat in the car with no seat, my butt jammed down behind the stock floor X-Braces right on the aluminum floor, and my helmet resting back against the harness bar. I can literally get no lower or further back than that. I still was 1/2" short of passing the broomstick test. So I either have to raise the rear roll bar, add a front hoop, or sell the car to someone who doesn't have the body of a fat mink topped with a giraffe neck! Make me an offer before I start cutting and welding!