Rules highlights at a glance. You’ll find info on classing and what is allowed for each class.

Should you have questions on rules or which class your car should be in, feel free to contact us for help.

Street Class
  • Vehicles with total Classing System points of 7.5 are allowed in Street class
  • Tires are limited to DOT and street tires only
  • The following modifications are not allowed in Street Class
    • Level 2+ Front Aero.
    • Level 1+ Rear Aero.
    • Level 2+ Rear Wing.
    • Lightweight aftermarket parts. (Replacements for OEM parts that are less than 90% of the weight of the OEM component)
    • Aftermarket body panels.
    • Any interior removal (unless necessary for safety equipment).
Street-Modified Class
  • Vehicles with total Classing System points up to 11 points may compete in the Street Modified Class.
  • Level 1 R-Compound Tires are permitted in this class
  • Level 1-2 Street Tires are permitted in this class
  • The following modifications are not allowed in Street-Modified Class:
      • Level 3+ Front Aero
      • Level 3+ Rear Wing
      • Forced Induction
      • Level 2+ R-Compound Tires
Race-Modified Class
  • Vehicles with total Classing System points up to 14 points may compete in the Race-Modified Class.
  • All DOT stamped tires are permitted in the Race-Modified class.
Unlimited Class
  • Unlimited cars are just that. Unlimited, and are required only to conform to the safety and conduct rules

Find our 2021 Season rules

Hit the link to see our ruleset.