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whats the difference between high cat flow and test pipe ?

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Old Nov 11, 2003 | 09:25 AM
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Default whats the difference between high cat flow and test pipe ?

heyso whats the difference between high cat and test pipe H dont' test pipe get a lil more power ?? need more info on that please, thanks in advance
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Old Nov 11, 2003 | 12:04 PM
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Default Re: whats the difference between high cat flow and test pipe ? (flyrice)

yes a little..App 1hp on my car compared to my 100 cell metallic cat..Not worth it to risk big fines for just 1hp ..Very strict emission laws here
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Old Nov 11, 2003 | 01:10 PM
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Default Re: whats the difference between high cat flow and test pipe ? (ce)

Are you wondering the power difference you would see between the two, or what both of them are?
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Old Nov 11, 2003 | 02:20 PM
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Default Re: whats the difference between high cat flow and test pipe ? (naturelovindc2)

the power difference
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Old Nov 11, 2003 | 02:37 PM
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there is a power difference. Usually about 1 hp between a new high flow and a test pipe. Some places are big fines for a test pipe, but also a test pipe costs like $50
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Old Nov 11, 2003 | 02:53 PM
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Default Re: whats the difference between high cat flow and test pipe ? (flyrice)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flyrice &raquo;</TD></TR><TR><TD CLASS="quote">heyso whats the difference between high cat and test pipe?? </TD></TR></TABLE>
High cats are way more fun to play with than test pipes. When my cat gets high, he acts pretty crazy.
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Old Nov 11, 2003 | 03:00 PM
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Default Re: whats the difference between high cat flow and test pipe ? (naturelovindc2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by naturelovindc2 &raquo;</TD></TR><TR><TD CLASS="quote">
High cats are way more fun to play with than test pipes. When my cat gets high, he acts pretty crazy. </TD></TR></TABLE>
he he he
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Old Jan 3, 2007 | 10:36 PM
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Default Re: whats the difference between high cat flow and test pipe ? (flyrice)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ce &raquo;</TD></TR><TR><TD CLASS="quote">yes a little..App 1hp on my car compared to my 100 cell metallic cat..Not worth it to risk big fines for just 1hp ..Very strict emission laws here </TD></TR></TABLE>

sorry but thats not true

think about if if you run down the street then run down the street with duct tape over your mouth and noise and put some pin hole dots in there

follow me so far it dose not take a high IQ to figure which will perform better

also think about this when you have all that back presure what do you think that is doing to your engine?

test pipe is the best way to go!
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Old Jan 4, 2007 | 07:15 AM
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Default Re: whats the difference between high cat flow and test pipe ? (richard7968)

test pipe FTW...think about it..with a high flow cat you still have resistance...a test pipe is an open straight pipe so of course its goin to flow better
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Old Jan 4, 2007 | 08:28 AM
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some car magazine [i think SCC or Super Street] did a dyno comparison and the test pipe made 1hp more than a magnaflow high flow cat.
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Old Jan 4, 2007 | 09:57 AM
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the difference between the two is going to be based on how much flow your engine/setup requires.

In cali where the laws are super strict, get a good high flow cat and move on.
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Old Jan 4, 2007 | 01:08 PM
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Default Re: whats the difference between high cat flow and test pipe ? (richard7968)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by richard7968 &raquo;</TD></TR><TR><TD CLASS="quote">

sorry but thats not true

think about if if you run down the street then run down the street with duct tape over your mouth and noise and put some pin hole dots in there

follow me so far it dose not take a high IQ to figure which will perform better

also think about this when you have all that back presure what do you think that is doing to your engine?

test pipe is the best way to go!</TD></TR></TABLE>

That's like saying all cats flow the same which isn't true.
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Old Jan 4, 2007 | 02:55 PM
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Default Re: whats the difference between high cat flow and test pipe ? (88 rex)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88 rex &raquo;</TD></TR><TR><TD CLASS="quote">

That's like saying all cats flow the same which isn't true.</TD></TR></TABLE>

i can not say it any better then Mr boots

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boots &raquo;</TD></TR><TR><TD CLASS="quote">test pipe FTW...think about it..with a high flow cat you still have resistance...a test pipe is an open straight pipe so of course its goin to flow better</TD></TR></TABLE>
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Old Jan 4, 2007 | 02:57 PM
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Default Re: whats the difference between high cat flow and test pipe ? (richard7968)

i pollute the environment

maybe ill get a cat later when i upgrade my header but as of now, i vote for pollution haha
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Old Jan 4, 2007 | 03:42 PM
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Default Re: whats the difference between high cat flow and test pipe ? (type B16)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by type B16 &raquo;</TD></TR><TR><TD CLASS="quote">i pollute the environment

maybe ill get a cat later when i upgrade my header but as of now, i vote for pollution haha</TD></TR></TABLE>

If it makes you feel any better then just look at the government policy on energy clearly they do not care if they did they would have done like brazil did years ago they would have converted to alcohol and also our tiny engines are in no way going to make the impact that a V8 piece of crap makes with there lack of emissions equipment

And also has anyone see those school buses LOL look at how much smog comes out of there tail pipe thank god i always roll up my window when at a stop light behind one of those gross smog machines lol

Also what about power plants

yes the government always wants to blame or hit the car market but it is not the answer the answer lays with the governments energy policies and oil companies profit margins was it the other day on the new about that one oil company paying off scientist to discredit global warming theory lol......when you hear about thinks like that and the examples i have given this thread why should we feel bad our cars run cleaner then the average Joes piece of clapped out junk anyway! Hope this makes you feel better lol
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Old Jan 4, 2007 | 04:27 PM
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Default Re: whats the difference between high cat flow and test pipe ? (richard7968)

comparing a high flow cat vs a testpipe



<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Comparing a 2.5 in. testpipe (RED) to a 2.5 in. Carsound cat (BLUE) in the same ITR ( 1.8L B18C5 ) with a CAI, Toda B cams, an SMSP 4-2-1 long hybrid header (2.5 in. OD collector), and SMSP 2.5 in. OD exhaust, Apex Power FC fuel tuning

There is virtually no difference. So there is no CEL code 45 to worry about and you don't have to worry about performance or passing emissions or polluting the environment...talk about a win-win situation!! Thanks goes to Chris for doing the dyno test.
</TD></TR></TABLE>

taken from: http://www.team-integra.net/se...ID=24

come to your own conclusions. imo, go with a high flow cat.
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Old Jan 4, 2007 | 05:13 PM
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Default Re: whats the difference between high cat flow and test pipe ? (richard7968)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by richard7968 &raquo;</TD></TR><TR><TD CLASS="quote">

i can not say it any better then Mr boots

</TD></TR></TABLE>

That's purely speculating that your car can take advantage of such excessive flows. If the restriction of the high flo cat (minimal resistance anyway) still flows enough to rid the gases in a matter that won't hinder your performance, then it shouldn't matter that there is a little resistance. That little resistance is negligable and your still running a cleaner car.


There is no NEED to run without a cat on a street car, IMO.

^
The dyno has proved that a few times now.
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Old Jan 4, 2007 | 05:23 PM
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Default Re: whats the difference between high cat flow and test pipe ? (88 rex)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88 rex &raquo;</TD></TR><TR><TD CLASS="quote">

That's purely speculating that your car can take advantage of such excessive flows. If the<U> restriction </U>of the high flo cat (minimal resistance anyway) still flows enough to rid the gases in a matter that won't hinder your performance, then it shouldn't matter that there is a little resistance. That little resistance is negligable and your still running a cleaner car.


There is no NEED to run without a cat on a street car, IMO.

^
The dyno has proved that a few times now. </TD></TR></TABLE>

I highlighted the parts of your post that worries me call me paranoid but personally when I hear things like you just said and I highlighted to me it is negligible when searching for improvements on a car like I have said before to people no matter how small of an improvement is still an improvement over what you started out with

As for running a cleaner car well I take my car to the car wash so no problems there!
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Old Jan 4, 2007 | 05:50 PM
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Default Re: whats the difference between high cat flow and test pipe ? (richard7968)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by richard7968 &raquo;</TD></TR><TR><TD CLASS="quote">

people no matter how small of an improvement is still an improvement over what you started out with

</TD></TR></TABLE>

If there is an actual improvement, and in this case, there isn't.

It's almost like saying bigger is always better, or more is always better. Would you put a purpose built header for a 2.0 liter motor on a mildly built B18c? An appropriately built B18c header would make more power. My point is that more doesn't necessarily equal better. The ABILITY to POTENTIALLY flow more air doesn't necessarily equate better numbers.

IMO, you would see gains going from a stock cat to a test pipe, but there is little to no gain going from a hi flo to a test pipe.

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Old Jan 4, 2007 | 06:12 PM
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Default Re: whats the difference between high cat flow and test pipe ? (88 rex)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88 rex &raquo;</TD></TR><TR><TD CLASS="quote">

If there is an actual improvement, and in this case, there isn't.

It's almost like saying bigger is always better, or more is always better. Would you put a purpose built header for a 2.0 liter motor on a mildly built B18c? An appropriately built B18c header would make more power. My point is that more doesn't necessarily equal better. The ABILITY to POTENTIALLY flow more air doesn't necessarily equate better numbers.

IMO, you would see gains going from a stock cat to a test pipe, but there is little to no gain going from a hi flo to a test pipe.

</TD></TR></TABLE>

going on that train of thought then some people will argue that 2.5 pipe is better then 2.36 pipe just curious but unless you have about a million dollars is anything truly appropriately built or is it a compromise?

and as for bigger been better well in the strictest sense it is a vtec b16 what ever is not as good/powerful as a b18 vtec what ever right?


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