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Catalytic converter delete, if emissions testing?
So, just bought an excursion and I'm beginning to plan out mods to improve MPGs. First step is going to be a new intake, then I'm considering changing the exhaust.
My question is this: I live in Arizona, which requires emission testings to register the vehicle. If I straight pipe my excursion (or at least remove the catalytic converter and get a high-flow muffler), will that cause a problem when I get my vehicle tested? (I think I understand the maximum allowed opacity in Maricopa County is 20%)