Honda Civic (2001 - 2005) Coupe / Sedan / Hybrid (Includes Acura EL)

HIGH FLOW CAT

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Old Oct 19, 2007 | 05:32 PM
  #1  
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Default HIGH FLOW CAT

I was wondering if a Random tech cat would be alright with a 50 - 75 shot NX kit; or should i go with a straight through downpipe?
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Old Oct 19, 2007 | 11:41 PM
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your exhaust is what chokes up making more power. you can really go either but having a cat wont restrict power too much.

http://www.civicforums.com/for....html

read that for more info
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Old Oct 20, 2007 | 02:40 PM
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Default Re: HIGH FLOW CAT (ss8EM2)

my exhaust is alright .... I'm worried about melting the innards of a cat; I've seen melted blobs of honeycomb catalyst material after ppl have gone turbo with stock cat and I saw the remnants of what a 150 shot did on a camaro with after market cat. So I was just wondering if the random tech cats would hold up.
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Old Oct 22, 2007 | 10:12 AM
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Default Re: HIGH FLOW CAT (ss8EM2)

don't use stock anything with he air flow in our cars VERY restrictive
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Old Oct 23, 2007 | 12:12 PM
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I will buy your stock cat if you put in a high flow, I will pay 50$ shipped for any stock cats.
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Old Oct 23, 2007 | 05:50 PM
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speedfos on 7thgencivic.com tore his stock cat up with 30k+ miles on 9lbs of boost.

http://www.civicforums.com/for....html

go to page 87 for his post. take it how you want to.
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Old Oct 23, 2007 | 07:24 PM
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Default Re: (Curiouz_G)

http://www.importtuner.com/fea...moval/
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Old Oct 23, 2007 | 07:27 PM
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that article doesnt really tell him whether the cat will stand up to a beating though. it only tells him those gains are minimal if he plans on running light mods. Nowhere does it state anything about any type of forced induction.
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Old Oct 25, 2007 | 06:26 PM
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Default Re: HIGH FLOW CAT (ss8EM2)

Well thank you all for all the input. I guess I'll just play it safe and buy a test pipe
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Old Oct 25, 2007 | 08:01 PM
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cats can die within seconds of being exposed to rich conditions. simple as that. run a cut out if you want a cat or just run a straight pipe. otherwise youll be spending lots of money on converters.
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Old Oct 26, 2007 | 05:19 AM
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Default Re: (skipbarber)

yea what he said.. jus pay the guy a little extra cash when your gettin your inspection though lol
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Old Oct 26, 2007 | 06:55 AM
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if only it were that easy
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Old Oct 26, 2007 | 10:46 AM
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^ oh but it is. i passed emissions twice with no cat. all they look for in 96+ cars is:

-a working check engine light: when you cycle the ignition, the light should come on momentarily, if not, you fail.
-no CEL's if you have a CEL on for any reason, you fail
-readiness monitors: if youve gotten this far, you should be fine unless you disconnected and reconnected your battery a few minutes before the test, you will be rejected and ordered to come back at a later date once all your readiness monitors have run.

so, just make sure you dont have any check engine lights and that youve been driving your car for a day or two without cutting power to the ECU.
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Old Oct 26, 2007 | 05:17 PM
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Default Re: (skipbarber)

Yeah I live in OK and they stopped having state inspections a few years back so I dont have anything to worry about that way.
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