Originally Posted by
spnkzss
2008 GCR
pg 97
9.4.D.
D. SIDE PROTECTION
Two side tubes connecting the front and rear hoops across both door openings are mandatory. NASCAR-style side protection or one bar bisecting another to form an “X” is permitted. Door side tubes may extend into the door. In American Sedan, Improved Touring, Showroom
Stock, Spec Miata, and Touring the door window glass, window operating mechanism, inner door trim panel, armrest, map pockets, and inside door latch/lock operating mechanism may be removed and the inner door structural panel may be modified, but not removed only if the door bars extend into the door cavity. The stock side impact beam and the outside door latch/lock operating mechanism shall not be removed or modified unless specifically authorized in the category rules.