[EclipseGST]

11.49 to 10.0 under 135mph trap you need a 5 point ROLL BAR. Requirements are the hoop, 1 door bar running forward next to the driver, 2 rear bars running to a structural place in the rear, strut towers, frame. Harness bar is usually installed as well but I dont recall of hand if its required.

9.99 to 8.50 you need a 10 point ROLL CAGE.

Difference between roll bar and roll cage is a roll cage has a halo above your head and windshield bars that run down to the dash and floor/frame by your feet. As well as a dash bar that connects the 2 windshield bars.

Yes, like Aaron said, you will need a cut off switch. As well as a battery box if you do not have a dry cell battery.

EDIT: Forgot to add that every point you weld a bar to the body/frame needs a 6x6 plate of 1/8" steel.