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Anonymous
Dodge Dakota
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5/21/2004
17:28:50
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 Subject: RE: Removing 3rd Cat 4.7 - Your 2 Cents
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Would it be worth it to put dual exhaust on a 1989, 3.9 5-speed. Why/why not?
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hahahahaha
Dodge Dakota
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5/21/2004
17:55:44
| RE: Removing 3rd Cat 4.7 - Your 2 Cents
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Dual exhaust on a 3.9 will KILL your torque not to mention sound like 5hit. Your exhaust would sound like 2, 3-cylinder engines running.
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Anonymous
Dodge Dakota
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5/21/2004
19:35:21
| RE: Removing 3rd Cat 4.7 - Your 2 Cents
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OH! Stange. So hahahaha, I`m obviously a moron cause I thought it would add more torque. What would you recommend then? Seriously.
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Mr.Sleepy
Dodge Dakota
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5/24/2004
10:49:56
| RE: Removing 3rd Cat 4.7 - Your 2 Cents
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Message:
Well I decided not to remove my third cat. I am going to have it replaced by a high flow cat though. With gas being what it is and the possibility of selling my truck in the future has demanded I keep it as legal as possible. I appreciate the Info you guys had for me, thank you very much.
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Larry Burton
Dodge Dakota
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8/25/2004
18:56:34
|  RE: Removing 3rd Cat 4.7 - Your 2 Cents
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I too thought about removing the cat. I was going to cut off the Y pipes where they merge together and run duals back from there. I didn't know the Y pipe was the true restriction problem. So I'm glad I didn't do it. I just had a nice dual cat back system installed and I sleep better knowing I don't have to fear the EPA.
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Bob Lincoln
Dodge Dakota
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8/26/2004
15:48:40
| RE: Removing 3rd Cat 4.7 - Your 2 Cents
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Message:
You don't have to fear them at all. However, it is illegal to put duals on a vehicle that originally came with single (even if it's cleaner and performs better). Reason being it's an uncharacterized setup.
Flame all you want. I'm just the messenger, not the author of the rules.
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TexasTodd
Dodge Dakota
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8/26/2004
21:09:06
|  RE: Removing 3rd Cat 4.7 - Your 2 Cents
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Message:
Well, ON MY 4.7, with a real tranny,
Getting back to the original subject line, I'm glad I finally had my third cat removed from the single pipe. It's definitely better. My one year old can't even hold his head off his car seat when I romp on it now! J/K, really, J/K
Ever seen the inside of the 3rd cat? It has a small mesh screen, like a window screen, made of metal covering the entire hole!
I'm going to have the same shop run duals from just behind the pre cats, all the way back, parallel on the pass side. NOT STRAIGHT OUT THE BACK!!
'Cat back'? For what?
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