That one in the link is actually FIA approved , however FIA approval not required for track day use. If interested its covered under MSA Appendix J article 253.
In fact roll cages are not required for trackdays , at this level it purely optional and is really only needed for your own saftey/peace of mind.
In fact roll cages are not required for trackdays , at this level it purely optional and is really only needed for your own saftey/peace of mind.