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post #1 of 7 (permalink) Old 03-30-2008, 07:27 PM Thread Starter
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Exhaust, whats what.

OK, reading through other posts has left me a little confused. My 96 with the 4.6. What is on this system that is stock? Two cats up front, one at the Y that goes back to the Mufflers or are those resonators?

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post #2 of 7 (permalink) Old 03-30-2008, 07:27 PM Thread Starter
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I have seen folks say they removed the 3rd cat. How is that connection redone then?

Tim

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post #3 of 7 (permalink) Old 03-30-2008, 08:12 PM
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stock is manifold to cat combined into a sigle third cat then single piping out to a y pipe and two mufflers.

Replacing the third cat can be done through an exhaust shop welding a y pipe in its place. I'd say your best bet would be to cut the third cat out and then take it to the place. They can't cut out any cats themselves because of epa bs.

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post #4 of 7 (permalink) Old 03-30-2008, 08:47 PM Thread Starter
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OH yea, I forgot about the EPA crap. I was just in TN last week in the middle of no where, there are shops there that would have cut on it for me.

Tim

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post #5 of 7 (permalink) Old 03-30-2008, 08:48 PM Thread Starter
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if there are two cats on it already why the hell cant a shop cut the third one. Any WHY are there 3 on there. Aint that over kill?

Tim

2005 Magnum 5.7 Hemi (93k)
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1996 Tbird (120k, V8)


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post #6 of 7 (permalink) Old 03-30-2008, 09:27 PM
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the first two only convert two compounds, the thirds cat does three. I would suggest replacing the main cats with "three way" cats




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post #7 of 7 (permalink) Old 03-31-2008, 09:05 PM
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Quote:
Originally Posted by GreenBird View Post
the first two only convert two compounds, the thirds cat does three. I would suggest replacing the main cats with "three way" cats
This is the second time I've seen someone say that in the past 2 weeks or so. Where is this information coming from? The front 2 cats on my car were the only cats when I had my emissions test in CA, and I can tell you for sure that all three pollutants were cleaned up. I had virtually 0 on everything. This misinformation needs to stop spreading around.

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