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Inahury1
Dodge Dakota
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5/07/2003
23:54:28
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 Subject: Single Cat.
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Message:
I have been reading about exhaust on this board trying to deside what to go with on my 2002 quad cad 4.7L. My question is that I have read that there are three cats and when I looked under mine it only has one is this rare or does it have to do with where oyu purchased yoour truck.
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INAHURY1
Dodge Dakota
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5/08/2003
16:22:59
|  RE: Single Cat.
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Message:
Does everyone have three cats? Dakotas in Nebraska or at least all of them that I have looked under only have one.
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Jeff W
DakotaEnthusiast
5/08/2003
16:49:33
| RE: Single Cat.
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Message:
I bought mine in Maryland. It has 3 :-(
'02 Sport 4.7 auto, Gibson exhaust, homebrew K&N cold air, 275/60 BFG Radial T/A's, Infinity CD w/Pioneer & Infinity spkrs & Kenwood powered sub.
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Demon Dakota
DakotaEnthusiast
5/08/2003
16:59:42
| RE: Single Cat.
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Message:
Mine only has 2 :)
K&N Drop in AF (CAI during summer months)
True Dual exhaust and removed third cat
HO Cams & HO Intake
FASTMAN 70mm TB
Autolite 3923 Plugs
TPS @ .76 VDC
IAT Adjuster Mod
14.52@94.2 MPH at Silver Dollar Raceway
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Inahury1
Dodge Dakota
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5/08/2003
22:15:13
| RE: Single Cat.
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Message:
Well the only thing that I can see on mine coming from the manifols is pipe until it goes into the y and then there is a cat or at least I think it is, it is about 6 inch diamter and then it goes back the the huge muffler. I was just wondering because I have seen that alot of members have removed the third cat and I think mine anly has one.. Is this a good thing? Will it sound good with duals? and if I only have one which muffler should I use.
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DO
Dodge Dakota
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5/09/2003
00:46:09
| RE: Single Cat.
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Message:
Just take the cat off and run flowmaster 1 chambers. That we be loud as none other :-)
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INAHURY1
Dodge Dakota
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5/09/2003
08:12:06
| RE: Single Cat.
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Message:
I don't think I want it that load. I want the sound load out the back and not that annoying resonance in the cab.
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inahury1
Dodge Dakota
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5/09/2003
08:16:13
|  RE: Single Cat.
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Message:
Sorry about the spelling I ment to say LOUD! (not load).
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b1llyw
DakotaEnthusiast
5/09/2003
08:27:58
| RE: Single Cat.
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Message:
How many cats you have depends on where you live and what emissions package is mandated by your state. California emissions and "50-state" emissions have three cats. "Federal" emissions only has one. I live in CT. I only have one on my '02. A buddy only has one on his '03. If I bought the same truck in Mass, I'd have three cats.
Bill White
2002 QC 4x4, SLT , 4.7, 5 spd, 3.92 LSD
1995 CC 4x2, SLT, 318, 5 spd, 3.55 LSD
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Pete
Dodge Dakota
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5/09/2003
21:29:32
| RE: Single Cat.
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Message:
Won't removing all of the cats, be it one, two, or three, play hell with the computer because of the 02 sensor? I figure that's why they make high flow cats, so you're computer will still function properly.
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b1llyw
DakotaEnthusiast
5/09/2003
21:34:23
| RE: Single Cat.
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Message:
You can remove the "main cat" on a 3 cat setup because there is no 02 sensor after it. The PCM will never know it's gone.
Bill White
2002 QC 4x4, SLT , 4.7, 5 spd, 3.92 LSD
1995 CC 4x2, SLT, 318, 5 spd, 3.55 LSD
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