You're not the only person interested in a CARB-certified GTM supercharger kit. Although many emissions testing stations rely on an OBDII check, it is my understanding that some places still use tailpipe sniffers and/or visual inspections. It varies from state to state. If I'm not mistaken, the California standards are considered to be the nation's most strict. Having CARB certification gives you the peace of mind that you can pass any inspection in any state. This is extremely useful if your job requires you to move periodically.
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