not sure where you can get it but the size depends on what rules your trying to meet
NHRA for a "Roll cage" is 1 5/8 x .083 CM or .118 MS
for road racing it is more dependant on the car weigth but most likley 1 /34 x but i would double check that spec.
also if using it for NHRA it MUST be TIG welded
|