All I can find is the front bar between the A pillars and the front footwell bars is needed.

I know I can race in ITA trim but to get to the STL weight I want to make sure I am compliant. Looks like fire extinguisher and windshield clips and fuel tank/cell requirements are the same.

I thought at one time ST had a requirement for number of exposed threads on the wheel studs but don't see anything now. I want to make sure there is nothing in the rest of the GCR that is not under the STL section (like the roll age differences).

Anything else?