ive been looking into get a set of sparco sets for my ap1 and i have a few questions. ive been looking at geting the SPARCO CORSA or the SPARCO PRO 2000 seats and i wanted to know if anyone has them in their s2k and hows the fitment. also i want to get 4 point belts for the car and i wanted to know if there is another way to mount the shoulder straps behind the seats without having a harness bar. say bolting into the plastic backs behind the seat or something, so if anyone can give me some insight i would appreciate it greatly. THANKS GUYS