3" cat

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Old Mar 14, 2005 | 11:42 AM
  #1  
firstclassjdm's Avatar
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From: La Crosse, wi, US
Default 3" cat

hey guys

With a full race down pipe and Thermal exhaust, will I still need a cat or does the downpipe go all the way to the exhaust? If I need a cat still, anyone know where i can get a good one? Say 3" or so? or do I just need to go test pipe? Thanks.
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Old Mar 14, 2005 | 11:54 AM
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b18bturbo's Avatar
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Default Re: 3" cat (firstclassjdm)

cat is just for emissions purpose there is really no need for one unless you want to pass emission which is still tough with a turbo kit on there. I reccommend ditch that just extend your downpipe out and use flex bellow section to connect to your 3" exhaust
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Old Mar 14, 2005 | 12:08 PM
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Default Re: 3" cat (firstclassjdm)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by firstclassjdm &raquo;</TD></TR><TR><TD CLASS="quote">hey guys

With a full race down pipe and Thermal exhaust, will I still need a cat or does the downpipe go all the way to the exhaust? If I need a cat still, anyone know where i can get a good one? Say 3" or so? or do I just need to go test pipe? Thanks.</TD></TR></TABLE>

http://www.kteller.com
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Old Mar 14, 2005 | 12:55 PM
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Default Re: 3" cat (TurboChrgd_Civic)

Using a cat I could build a turbo system than is 49 state street legal.

Not using a cat I could build a turbo system than is 49 state street legal on cars 1974 and older.

It's all about environmental responsibility. I can see race cars not using cats, but daily driven cars should always use them.
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Old Mar 14, 2005 | 01:16 PM
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.dave's Avatar
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Default Re: 3" cat (beepy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beepy &raquo;</TD></TR><TR><TD CLASS="quote">Using a cat I could build a turbo system than is 49 state street legal.

Not using a cat I could build a turbo system than is 49 state street legal on cars 1974 and older.

It's all about environmental responsibility. I can see race cars not using cats, but daily driven cars should always use them. </TD></TR></TABLE>

Its also a huge fine in some states for not having one.
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Old Mar 14, 2005 | 02:07 PM
  #6  
firstclassjdm's Avatar
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Default Re: 3" cat (1 cam)

do you guys know how much the sound of the thermal exhaust will change if i remove the cat? I know on some exhaust like my old greddy evo, the tone got really loud and high pitch. cool but too loud and got in trouble one too many times.
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