Why is TopSpin Design 4-point harness not SFI certified?

The TopSpin Design harness setup is designed to be an easy mount on your car. SFI Foundation states that Please be aware that 4-point harnesses can not be certified to the SFI spec. Only 5-point or more may be tested and certified.

There are no SFI certified 4-point harness in the market. Most of the racing organization requires a roll bar or full roll cage with the harnesses bolted on to the vehicle chassis. The TopSpin Design harness setup designed to avoid drilling any additional mounting holes.

All to be done is to hook up to the points as the instructions state. Roll cage is only good if you have a helmet with fully strapped tight harnesses. More.

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