DASH BAR IS ONLY REQUIRED IF OEM FIREWALL HAS BEEN MODIFIED PER NHRA, QUOTED BELOW
"ON ALL CARS REQUIRING A ROLL CAGE, IF THE OWM FIREWALL HAD BEEN MODIFIED (IN EXCESS OF 1 SQUARE FOOT FOR TRANSMISSION REMOVAL, NOT INCLUDING BOLTED IN COMPONENTS) A LOWER WINDSHIELD OR DASHBAR OF 1 1/4 X .058-INCH 4130 CHROMOLY OR 1 1/4 X .118-INCH MILD STEEL IS MANDATORY CONNECTING THE FORWARD CAGE SUPPORTS.