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snakebit
Dodge Dakota
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4/08/2003
20:34:59
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 Subject: R/T grunt
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I have a 2000 R/T. As of now i have mopar headers and mbrp cuda cat-back on the exhaust side. i am considering cutting off my cat and putting in a straight pipe. i want my truck to be louder but still sound good......not too raspy. i dont know much about the cat simm box? how much do those run? please help me
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snakebit
Dodge Dakota
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4/08/2003
20:40:41
| RE: R/T grunt
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one more thing........would i need a dual or single cat box and any other places besides krc carry them?
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Joey
Dodge Dakota
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4/08/2003
21:27:49
| RE: R/T grunt
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i got my simm box from thefastman.com for $125. i have a 2002 r/t which needed the double cat box but im not sure about the single. if u need the single it only goes for like 80 bucks.
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TurboGuy
Dodge Dakota
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4/09/2003
06:48:24
| RE: R/T grunt
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You'll probably need the dual plug setup. I have a 2000 also. Mine is straight 4" pipe from the collector to a dual split. No mufflers or cat. (off road use only you EPA nazis!) It can vibrate windows across the street at idle...lol
Its loud, obnoxious, and screams "Im 17 again"...but I love it.
You should have seen the "war protestor" in my town when I did a Prostock style burnout with the exhaust tips pointed right at them. They were running for cover when I unleashed the "wrath of the 360" on there stupid azzes
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snakebit
Dodge Dakota
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4/09/2003
21:58:35
| RE: R/T grunt
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TurboGuy...............hahahhahahha thats awesome.....and the thing is i am 17. ive run w/ the headers open before and that is pretty damn loud but i want to keep it somewhat muffled.......i still dont completly understand the simm box tho.......
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TurboGuy
Dodge Dakota
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4/09/2003
22:49:00
| RE: R/T grunt
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All the sim box does is tell the computer everything is hunky dorey and dump some fuel in the motor please. The FI system relies on the O2 sensors to constantly adjust fuel mixture.
As far as my exhaust, I can install a muffler if I needed too. My truck is not a daily driver. A decent sized Flowmaster or quality muffler will quiet the truck down a few decibels. Go with a quality stainless steel muffler. Do a search in the Performance forum. There are a few recomendations.
The passenger side had loads of room for any size muffler and pipe.
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HSKR
Dodge Dakota
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4/10/2003
11:05:55
| RE: R/T grunt
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No need for a O2 simm, just remove the rear O2 from the pipe, plug the hole, and wire tie the O2 to the frame rail. You won't have any problems like that. I've been running mine like that for well over a year with no codes.
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snakebit
Dodge Dakota
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4/13/2003
20:20:19
| RE: R/T grunt
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How do i know if i need a single or dual simm box. keep in mind i have a 2000 r/t. and i would really like to do this for free as you suggest HSKR but call me stupid but i still dont get it. thanks
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Joey
Dodge Dakota
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4/14/2003
00:02:47
| RE: R/T grunt
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look under ur truck to see how many cats u have. if u have one after each exhaust manifold and one larger one before the muffler u need the dual cat system but if u only have 1 visible cat then its a single. dont be scared to get dirty, get under ur truck and look.
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Matt Rish
Dodge Dakota
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4/15/2003
15:55:57
| RE: R/T grunt
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Better yet, dont worry about having to by-pass and electricals and just get a high flow cat so you are still legal and dont flow any codes, then get a 10 series flowmaster, loud as they get and beautiful when driving....my op anyway
02 RC Graphite R/T....Removed 3rd Cat, 10 Series Flowmaster Dumped, 1.7 Comp Cams Roller Rockers, 360AirIntakez, M-1 Manifold
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HSKR
Dodge Dakota
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4/15/2003
18:15:34
| RE: R/T grunt
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I've done the whole high flow cat bit, and had two high flow cats go bad, and still popped codes with them in. The '00 R/T's only have ONE cat, and TWO O2 sensors. Just remove the rear O2, and zip tie it to the frame rail. Problem solved, and no money spent on O2 simms. The O2 tied to the frame rail appeases the PCM to think the Cat is doing it's job. The only reason for the rear O2 is to check cat efficiency. You weren't asking for how the O2 simms worked, so don't worry about why tieing the O2 to the frame works, just know that it does, and is a free mod.
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