Celica Forums General Discussion Exterior 4-point harness Question

I got my sparco tourino's installed and just mounted the 4-point seat belts down to where the old holes used to be for the factory seat. I was just reading on another website that this was dangerous. I had no idea. Now i would like to know how i could change them to be safe. I dont have money for a harness bar and dont plan on getting a roll cage. Is there any other alternative?? I dont mind removing back seats or making new holes. ANy pictures and advice would be greatly appreciated!!!

Rear seatback mounting points keep the straps close enough to level to make them safe. to be truly safe, you should only use 5-point harnesses, or a 4-point harness that is approved for racing (such as the Peak 4-point harness systems, which let the body twist like a three point belt in a crash)