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ImRikJamsBich
Dodge Dakota
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8/30/2005
22:52:02
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 Subject: TRUE DUAL
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Message:
im going to make myself a true dual system but im wondering if i will pass emissions. dont you run the pipes straight from the headers to an H/X crossover? is the catalyctic converter completely removed from the system? ne help would be very helpful thanx
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Bigreddak18
Dodge Dakota
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8/30/2005
23:49:59
|  RE: TRUE DUAL
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Message:
yeah im doing the same thing, which motor do u have? i have the 4.7 and in order to have true duals i have to remove the cat in order to use an o2 simulator
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GraphiteDak
GenIII
8/31/2005
01:10:29
| RE: TRUE DUAL
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Message:
What? I'd install two NEW cats as close to the manifolds as possible. Not worth leaving them off for virtually un detectable improvements.
If it wasn't for needing two new cats, I'd have done my duals by now. I'm just waiting to fond two high flow OBDII cats for a good price.
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Mikes99Dakota
GenIII
8/31/2005
12:00:46
| RE: TRUE DUAL
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Message:
Well I know the stock cats on the 4.7Ls that come right off of each side from the mannifold are pretty high flow to begin with lots of dodge dtech guys say that this is now sort of a universal cat for better exhale and emmisssions.
1999 RC Auto 5.2L
Mopar PPH, Magnaflow 3"/Cut-out, K&N FIPK, Viper Electric Fan Kit, 3.90s/Suregrip
Track Times: 60' - 2.163
1/8 - 9.53 @72.19 mph
1/4 -14.89 @91.24 mph
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ImRikJamsBich
Dodge Dakota
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8/31/2005
17:52:38
| RE: TRUE DUAL
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Message:
4.7s r badass. ya thats wut i have but do u have to remove the catalyctic converter?
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Crap
Dodge Dakota
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9/01/2005
14:02:58
| RE: TRUE DUAL
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Message:
Those two cats are part of the y-pipe? They're welded to the pipe?
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ImRikJamsBich
Dodge Dakota
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9/01/2005
20:00:16
| RE: TRUE DUAL
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Message:
yup
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Crap
Dodge Dakota
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9/02/2005
00:41:22
| RE: TRUE DUAL
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Message:
Oh crap!
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99dak5spdmod
Dodge Dakota
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9/08/2005
15:17:59
| RE: TRUE DUAL
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Message:
well just to answer one of your questions about passing emissions, no you wont and if they are pricks about it you can be fined up to a $10,000 by the EPA for not having cats
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jonny
Dodge Dakota
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9/08/2005
20:56:10
| RE: TRUE DUAL
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Message:
i have a 99 3.9l with dual flowmasters with no cat should i get a cat or leave? (for performance which one should i do)
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Skydiver
Dodge Dakota
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9/09/2005
22:55:53
| RE: TRUE DUAL
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Message:
I heard that there could be a O2 sensor issue with running true duals. Any truth to this? How would you overcome this?
2003 Dakota R/T CC
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FLDak
Dodge Dakota
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9/10/2005
22:55:38
| RE: TRUE DUAL
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Message:
I'm running true duals, no cats, Fastman o2 sims, 4.7L, no problems.
But then I live in FL, now emissions testing.
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00dak
Dodge Dakota
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9/11/2005
02:23:57
|  RE: TRUE DUAL
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Message:
Same here,no emission test. Trueduals no cat,reinstall 02 sensors in same location as stock,Xpipe. No MIL light. Runs excellent.
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Dewey
Dodge Dakota
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9/11/2005
19:11:53
| RE: TRUE DUAL
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Message:
Dont do true duals you will lose HP with the 4.7, a single 3" from the Y back ie the best setup for performance. Do your duals if you want to just sit there and rev up your DOG but pesonally id rather have the power.
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Dewey
Dodge Dakota
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9/11/2005
19:14:39
| RE: TRUE DUAL
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Message:
I have 348 rear wheel HP thats 450+ to the fly and I have single exhaust.
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Android287
GenIII
9/11/2005
20:43:41
| RE: TRUE DUAL
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Message:
All the hardcore 4.7 guys know that true duals work wonders. Many people usually gain about 3 tenths in the quarter on a N/A engine.
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intense blue
Dodge Dakota
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9/11/2005
21:06:20
| RE: TRUE DUAL
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Message:
dewey, if you would have someone build you some long tube headers and a dual 3" exhaust, you would have more than 348 rwhp guarenteed. I would guess your engine isn't N/A. But if it is, then you'd gain even more with good headers and duals.
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dewey
Dodge Dakota
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9/12/2005
12:44:56
| RE: TRUE DUAL
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Message:
Had true duals went back to a single and am very happy other than blowin up my motor. Its in Chicago gettin tore down.
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