Well I checked with my son and he tells me what he had wasn't a "rool bar" dad???!!!! Course thats what he called it when he put it in. Why don't you pm HDDP and ask him? He will know what works and what doesn't. As I recall the box my SLK bars came in said "not for competition use". So you may very well have to get a kit from someone and modify it to your needs or have something made.