Quote:
Originally Posted by TrustButVerify
Has anyone had issues with the Northern Virginia emissions test after modding and tuning? How did you fix it? Are there any DP, stage tunes, or exhaust setups to avoid?
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NOVA does an OBD only check, so as long as the factory emission systems are in working order, you will be pass. Once you pass the first time, you can try to do use RapidPass, which is a mobile tailpipe sniffer they setup on the highway ramps. I think you can pass that as long as you don't go full catless downpipe.
My car is mostly stock, but I figured I would at least provide an initial answer. This forum takes a minute to generate replies especially when you narrow the focus or region.