S stageup Member Mar 31, 2008 #1 since it replaces both cats with 1 high flow, will it pass california smog checks? i'm guessing *should* since i did remove my cats on my old car and replaced them with high flow cats back in the day, i barely passed, but it did pass.
since it replaces both cats with 1 high flow, will it pass california smog checks? i'm guessing *should* since i did remove my cats on my old car and replaced them with high flow cats back in the day, i barely passed, but it did pass.
