I/O Port Racing Supplies offers quality harness systems made by and .
Autopower systems are SFI 16.1 certified with the freshest dates possible. Each 5- or 6- or 7-point system features 3-inch wide shoulder and lap belts and a 2" anti-submarine belt. We also offer 72-inch long H-style systems. We offer both pull-up and pull-down hardware.
Schroth makes both street legal systems and racing systems. Use the street legal systems when you are doing autocross or driving schools and the racing systems when you need the best in a FIA certified harness.
Extra hardware is available for all our systems to convert to snap-in, bolt-in or wrap-around mounting. Also see Restraint Instructions and our FAQ page.