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kcb37 -> RE: '98 4.3 v6 exhaust question (5/13/2007 5:11:34 PM)
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To make is simple and not have to mess with the computer, do a cat back dual exhaust. If you want to get rid of the cat you can get something that plugs into the sensors and tells the computer it is running right. If you want to do that call summit racing 1-800-230-3030. I don't know where else to get them. But if you want an opinion, I would replace the cat and put a catback dual exhuast on it. I say that because the o2 sensors will pickup things like a dirty fuel filter, or oily plugs that still fire with a rich or lean code. It will be easier to keep it running the way it should.
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