Sorry, I'm an engineer, so spelling/proper sentence structure aren't my strong suit, but whenever I see "duel" where the person means "dual" just really grates on me

anyhoo, to be 100% compliant in legal terms with the PRC (People's Republic of California), I'd say if whatever you system you put on it has a CARB number associated with it you're fine....otherwise,

I'm from Minnesota and live in Michigan, where we don't have no steeekin' inspections....