Four post roll cage with diagonal brace behind driver is mandatory. Braces must remain within drivers compartment. NO muffler pipe may be used for roll cage. Must have three bar door protectors on both sides. Horizontal bar between front vertical bars and under dash.
Engine hoop to incorporate leg brace tube to protect driver.
NO protruding or Sharp edges. Cage must be welded to frame in at least six places. Cage must extend the full width of the frame and top. Use web type gussets to tie frame roll cage together. NO pipe directly behind bumper.