[Pushit2.0]

5 point roll bar is legal to 9.99@135, tubing needs to be DOM 1 3/4" OD .125" wall mild steel, or DOM 1 3/4" OD .083" wall Chrome Moly


8 point roll cage is legal to 8.50@150, tubing needs to be DOM 1 5/8" OD .125" wall mild steel, or DOM 1 5/8" OD .083" wall Chrome Moly.

In a unibody car there needs to be at least 1 6"x6" 10 gauge mild steel plate fully welded for each point, or sandwitch with 2 plates and 4 3/8" bolts.

And the 8.50 cage needs a bar running across the floor at the bottom of the main hoop for the D bars to go to. All mild steel weld joints can be either MIG or TIG welded, any joint with Chrome Moly needs to be TIG welded with ER70S2 rod. The drive door bar for both roll bar and cage can be swing out or removable, the passanger door bar is nice to keep it looking symmetrical and strong, but not required.

Also 8 point roll cages need to be certified every 3 years by NHRA and need a properly installed window net and 5 point harness on the driver side.