I have a 1990 Miata, I know it is SM illegal, what about ITA...however a few things I think would throw it out. The cars specs are:
-KYB AGX shocks
-Tein springs
-Seam welded chassis * main worry
-Delrin bushings * another worry
-OPM strut bar
-Header
-Exhaust
-Intake
It has a lot of other...