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Discussion Starter #1
Just purchased used '04 Murano (24k miles) and noticed it seemed rather loud. I took it to dealer and they replaced the rear part of the muffler under warranty. Very nice. Has anyone else had muffler problems?
 

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Ouch... Was I wrong in my assumption that the Mo's exhaust was stainless? The stainless steel exhaust on my Maxima lasted 190,000 miles before the muffler made any noise at all. 24k is not a long lifespan for an exhaust system....
 

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The exhaust hangers are made out of normal steel, and they rust. Conceivably the hanger could break and stress the muffler until it developed a crack and leak.

I too thought the Murano's exhaust was stainless steel.
 

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Discussion Starter #4
I know the leak was in the rear joint (two bolts) to the main muffler. I thought they would just replace the gasket. The dealer may have decided to replace the whole thing just in case. Maybe they felt there was too much back pressure that caused the gasket to leak? Since I bought the car used I don't know the history behind the evil muffler.
 
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