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I have a97hx full stainless exh. header all the way back including muffler,state patrol didn't like my muffler no baffles he said, I put in a piece of flat stainless with holes in it and bent it u shape and screwed it in. Doesn't bother my car at all fe is upper40 to51 and iv'e only replaced my primary 02 once so far in 435,700 mi.
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