1. Front bumpers, rear bumpers, body trim pieces, and attachment points may be reinforced to prevent or repair damage from hitting cones. Reinforcements that are not visible to the exterior of the car are allowed. Such repairs and/or reinforcements may serve no other purpose.

2. Accessories, gauges, indicators, lights, and other appearance, comfort-and-convenience modifications which have no effect on performance and/or handling and do not materially reduce the weight of the car are permitted. This does not allow driver’s seat substitutions, or the removal of “tow hooks” or “tie-down loops.” Data acquisition systems (including video cameras) and the accompanying sensors are allowed but may serve no other purpose during a run than real-time display and data recording.

3. Alternate shift knobs are allowed.

4. A commonly available short throw shifter may be utilized, examples include:

A. Hurst Competition Plus Short Throw Shifter, Part# TR-3650

B. STEEDA Ford Mustang Tri-Ax Shifter, Part# 555-7305

C. MGW 2005-2010 GT & V6 Short Throw Shifter

D. MGW 2005-2010 GT & V6 Flat Stick Shifter

5. Spare tires, tools, and jacks may be removed. Any fastening hardware and/or other pieces that can no longer be firmly secured in the absence of the spare tire may be removed if necessary to ensure compliance with Solo® Rules section 3.3.3.B.1, Safety Inspections, Inspection Requirements.

6. Cars may add one (1) rear trailer hitch. 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.

7. Tow bar brackets may be installed and may serve no other purpose.

8. Any item not permanently in place by manufacturer-installed fasteners may be removed (i.e., emergency tool kits).