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Re: 93 GMC K2500 - O2 cat reducing NOx?
I like that answer...thanks...makes me know Im not crazy, and I wasnt imagining that it looked OEM and unmodified. Ive seen many glowing catalysts at the trailer shop next door...horse trailers...LOADED...limping in for hitch repairs...and cat is bright red be... Login to read more. ![]()
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