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post #1 of 8 (permalink) Old 04-15-2011, 08:57 PM Thread Starter
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Are these cats????

Just bought a 1983 GTV6...these are in the exhaust system, within a few inches of the exhaust manifolds. There is also no O2 sensor...??? This set up can't be right.....any comments?
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post #2 of 8 (permalink) Old 04-15-2011, 09:28 PM
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Strange, the one on the right appears to be a cat, and the one on the left a small muffler. It's not a stock configuration or any know aftermarket set up. I would replace it.

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post #3 of 8 (permalink) Old 04-20-2011, 01:44 PM
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Did US gtv6s have cats that long ago? Looks like different sections of the exhaust have just been renewed at different times with different parts. Maybe a PO has replaced a part of the system with a milano part? Either way, seems like a good excuse for a nice fresh system!

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post #4 of 8 (permalink) Old 04-20-2011, 02:53 PM
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Quote:
Originally Posted by fatdarryl View Post
Did US gtv6s have cats that long ago?
In the US, cats started appearing about 1974 and within a few years, virtually all passenger vehicles with petrol engines had them.
All USA version GTV6s, 1981-1986, were fitted with factory cats.

Jim

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post #5 of 8 (permalink) Old 04-20-2011, 06:11 PM
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Sorry, looks like a case of cats and dogs to me! In other words, needs a new cat system. To be USA legal. If that is your thing. And new proper cats won't really hurt performance.
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post #6 of 8 (permalink) Old 04-25-2011, 05:32 AM
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It appears that one of these is a Euro down pipe with it's small muffler. The other is a small replacement muffler in the Euro pipe. As several others have indicated, they are not Cats and probably should be replaced.
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post #7 of 8 (permalink) Old 04-25-2011, 07:27 PM Thread Starter
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I kinda knew this was some mickey mouse system someone put on. When I get my new engine in....my gut feeling tells me to go ahead and get a cat system with an O2 sensor hooked up from the start.
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post #8 of 8 (permalink) Old 04-27-2011, 06:20 AM
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Your engine will run better with a functioning O2 sensor.
KG
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