price on new exhaust system and o2 sensor on 2002 Nissan Maxima

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what would it cost to put a o2 sensor on and replace the whole exhaust system including the catalytic convertor
(2) Answers
This would be a pricey already know that there are FOUR O2 sensors and TWO catalytic convertors...right? I would estimate (blindly) that it would be between $2,000-2,500. Of course, you could still just replace ONE sensor and ONE of the catalytic convertors to keep the price low.
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