At the very least I would install a roll bar and use a harness and HANS. When I drove my C4 on the street and did HPDE, one of the first things I did was install a 4 point bar, harness and a little bit later came the Hans. The wall is not any softer for "Just HPDE" cars. If you hit a wall or flip in an HPDE it does just as much damage. Safety items should be first on the list of mods. :thumbsup:Well,,, nothing too serious... Just HPDEs.
As I go to track more, I could tell that I was pushing the car harder which makes the chance of 'incidents' higher.