Miata Parts, Intakes, Superchargers, Headers, Exhausts, Shocks, Springs, Sway Bars, Brake Kits, Autocross and track mods.
Will the street header upgrade pass smog test in california. If not what upgrades can i do to my car to. Make the exhaust better and increase ☝
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The Street header does not have a CARB exemption number. Thus, it passes tailpipe sniff tests easily but fails the visual. Midpipe also has a cat from the factory, so no CARB choice there. That leaves muffler and our AEM intake as your legal CARB certified intake/exhaust mods.
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