2way or 3way? - TCCoA Forums
 
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post #1 of 6 (permalink) Old 06-02-2006, 02:15 PM Thread Starter
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2way or 3way?

Hey i was wondering what is the difference between the two im assuming a 3 way cat has two inlets and one outlet but when i look at something like this
https://www.fulllineexhaust.com/cgi-...Converters.htm

it says its a 3 way but theres a single in and out, anyways to get to the point im replacing my front two cats will this be ok??

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post #2 of 6 (permalink) Old 06-02-2006, 03:17 PM
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2 way cats deal with carbon monoxide and hydrocarbons or volatile organic compounds (VOCs).

3 way cats deal with carbon monoxide, hydrocarbons or volatile organic compounds (VOCs) and NOx molecules.

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post #3 of 6 (permalink) Old 06-02-2006, 04:28 PM
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Get the 3-way. It will cut down on NOX emissions and it won't hurt anything else.

The 2-way or 3 way only refers to the gases that it converts. Basically a 3 way cat has 2 seperate catalysts inside it. First the gases pass over one that is identical to the 2 way cat, then they pass over another that reduces NOX.

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post #4 of 6 (permalink) Old 06-02-2006, 04:58 PM Thread Starter
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ohh got it thanks alot man

96 LX 3.8

Custom air intake, 9" K&N Cone, ASP underdrive pulleys, True Duals with DI/DO midmounted Magnaflow, ported upper and lower intakes, ported TB...and more to come


http://www.cardomain.com/ride/2385772

-Johnny-
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post #5 of 6 (permalink) Old 06-03-2006, 10:55 AM
No, Mr. Lemmywinks, No!!!

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In short...

...3-ways are better than two ways...


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post #6 of 6 (permalink) Old 06-07-2006, 06:19 PM
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2-ways contain platnum and palladium 3 ways have platnum palladium and rhodium
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