1. Front hoods, engine covers, trunk lids and hatches not containing glass, front fenders, rear fenders not part of chassis structure (unibody), front and rear bodywork, and side skirts may be replaced with factory parts or exact duplicates in order to facilitate allowed modifications. This does not permit adding components with additional vents or ducting for airflow.

2. Vehicles with removable hardtops may use an exact replica hard top including one made of alternate materials. Replacement pieces must be able to use OE hinges and latching mechanisms as standard. Rear glass in such hardtops may be of automotive safety glass or polycarbonate material.

3. Factory rub strips may be removed.

4. OE “pop-up” headlights may be replaced with static headlights, provided the replacement units are intended for automobile use on public roads as a primary means of illumination, and retain high and low beams as originally provided by the manufacturer. Minor repositioning of the headlights can accommodate the alternate headlight, but the unit may not be relocated, and the repositioning may serve no other purpose. All associated hardware may be removed, replaced or modified.

5. Fenders may be rolled but not flared, but no material may be added or removed, pinch-welds may not be expanded, nor may the general shape and contour of the fender be modified.

6. Commercially available bodywork cladding, molding, trim, accessories, lights and other appearance modifications including flexible “chin lips,” which have little or no effect on performance and/or handling and do not materially reduce the weight of the car are permitted. The addition of small holes for attachment hardware for cosmetic modifications is implicit (e.g., holes for fasteners to mount side skirts).

This allowance – seemingly grey for any SCCA traditionalists – is to encompass exactly what it says. Cosmetic items. This is intended to allow mass-produced aftermarket items which resemble what a factory accessory catalog or auto-parts store accessory isle might have. Meaning, this allowance is for items which may look like performance parts but do not change anything which could affect warranties by increasing stress/improving performance.

1. Addition or removal of spoilers, splitters, spoilers, single-element rear wings, bumper covers, valances, side skirts, convertible hard tops and scoops/vents is allowed provided that:

A. The removal of parts matches a production model of that generation classed in Sport Category. (eg., You may not remove parts unless a model of that vehicle was available without the part or parts.)

B. It is a production part which is standard or optional equipment of a model of the vehicle classed in Sport Category.

C. It is listed in the vehicle manufacturer’s accessory catalog for that vehicle for normal highway use. This may not allow for parts sold through a manufacturer’s performance catalog (e.g., Ford Racing, HPD, Mazdaspeed, Mopar Performance, Mugen, NISMO, SPT, TRD, etc.).

D. All allowed parts must be installed as directed by the manufacturer. Exact replicas, including weight, from alternate sources are also permitted.

E. Updated parts, replacement parts, or any other changes by the manufacturer documented in the parts catalog or other manufacturer documentation as superseding the original part number used when manufactured are considered to be standard parts.

F. Wings and Spoilers are subject to the following restrictions unless the vehicle is in the same class:

1. The part may not be adjustable.

2. The unit (wing, supports and end plates) may not be constructed by more than three primary pieces. (E.g., a wing with separate wing element, end plates and supports as in a Cayman GT4 or Camaro ZL1 1LE would not be allowed on a lower-class Cayman or Camaro.)

2. Factory emblems, mud flaps, bolt-on front valance lips/spoilers and fog lights (except those integral to a headlight or turn signal) may be removed. Rear wings may be removed so long as the vehicle retains any federally-mandated third brake light.

3. Hood straps or fasteners may be added.

4. Cars may add one (1) rear trailer hitch. The resulting weight addition is allowed. The hitch may serve no other purpose. Factory tie downs and cosmetic pieces (e.g., diffusers) may be modified or removed to facilitate hitch installation. Complete or partial removal of the hitch is allowed for competition, provided it does not result in a reduction in weight compared to the unmodified standard configuration.

5. Tow bar brackets may be installed but may serve no other purpose.

6. Tow hooks and tie downs may be added, modified or replaced. Addition of tow hooks and tie downs are permitted, and location is unrestricted. Non-standard tow hooks shall serve no other function.