I have an Autopower 'race' bar on my car. Both tops fit fine but there's not much room to spare. Some P.O chopped off the flat piece that is welded to the removable brace that goes over to the left upright . I assume that you could attach a harness to it. Even though it's called a 'race' bar, I would be surprised if it was SCCA legal as I thought their regs would demand a bar that was somewhat taller. I don't know that for a fact... just surmising...
BTW, last time I looked at an Autopower catalog, both the 'street' and 'race' bars were still listed...
edit: I found a pic I took of someone's car at TUXXXII that had that piece that mine's missing and shows at least some of the bar...
Jim
B382000446