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Old 03-02-2013, 06:06 PM   #29 (permalink)
my2004Z
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Join Date: Apr 2009
Location: New Mexico, USA
Posts: 285
Drives: 09' 370Z w/Sport 7AT
Rep Power: 37
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Quote:
Originally Posted by USMCASA View Post
i've always been told it was the cat cooling down
Yeah it's probably the catalytic converter. However, you might want to do a visual inspection and make sure you didn't get something plastic stuck to any part of your exhaust system. I once ran over a small piece of construction grade plastic sheet in my 350Z and it caught onto my catalytic converter and made all kinds of weird noises and smells. I had to go through all kinds of stupid gyrations before I got it all off and the smell went away.
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