Hit the link to see our complete ruleset.
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 8.5 are allowed in Street class
- Tires are limited to Street and 200tw category only
- Vehicles competing in street class must have intact OEM dash boards with functioning heater/defroster
- Vehicles competing in street class must have functioning headlights, taillights and brake lights in the OEM locations
- The following modifications are not allowed in Street Class
- Level 2 Front Aero.
- Level 1 Rear Underbody 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).
- Passenger seat removal
- Replacement of OEM windows for polycarbonate / lexan type (exclusion for soft top or hard top on convertible replacement windows)
Street-Modified Class
- Vehicles with total Classing System points up to 11.75 points may compete in the Street Modified Class.
- Vehicles competing in street-modified class must have intact OEM dash boards. The heater/defroster components may be deleted.
- Vehicles competing in street-modified class must have functioning headlights, taillights and brake lights in the OEM locations
- Street, all 200tw and Level 1 R-Compound Tires are permitted in this class
- The following modifications are not allowed in Street-Modified Class:
- Level 3 Front Aero
- Level 4 Rear Wing
- Aftermarket Forced Induction
- Level 2 and 3 R-Compound Tires
- Replacement of OEM windows for polycarbonate / lexan type (exclusion for soft top or hard top on convertible replacement windows)
Race-Modified Class
- Vehicles with total Classing System points up to 16.25 points may compete in the Race-Modified Class.
- All DOT stamped tires are permitted in the Race-Modified class.
- Vehicles competing in modified class must have functioning brake lights. Locations may be altered
Unlimited Class
- Unlimited cars are just that. Unlimited, and are required only to conform to the safety and conduct rules