Q: How do I build the equivalent of the Autocross Package today?

Two orders. Configure the Sport Suspension Kit as shocks only, which keeps your factory springs in place, then add the rear bar from our 2017-2023 adjustable sway bar set in the spec that matches your driving. You end up with adjustable damping and adjustable rear roll stiffness, the same two levers the original package pulled. Verify your class’s current rulebook first, since compliance always sits with the entrant.