well that the question does anyone makes a harness bar for a 90-91 crx?

i understand that in alot ot autoxing and other honda challenge type races states full cage are optional and stock seatbelts are fine. i do understand the postion of the seltbelt upper stap is different in these years compart the older and newer honda. i'm still unsure what class i would like to enter yet i'm still doing reserch. since i'm building my rex i do want an upgrade for my belts without trying to be a idiot about, also as well put some good seat into it, too. so if/and i do deciede to what class i go to i'm fine or i just have to remove the bar. please help me if you know a link or some one makes them custom. i've done enough research to know tha sparco makes them for 92-95 and up. help

remo