I've got an '07 GT V6 with OBX Cat back on it, but I really want to get headers because my brother got them for his Spec-V and it was the biggest gains i've ever seen from a bolt on. My concern is that I live in PA and I know headers without a cat won't pass even the shadiest of the inspections. Are there any headers that come with cats that would pass inspection? I saw a thread posted with a full list of headers offered for the tibs and some said they included racing cats, but I don't know if it would require messing with o2 sensors or anything (not a real header buff and won't claim to be one). help is appreciated!
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