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Jim
Dodge Dakota
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10/17/2006
00:53:07
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 Subject: 4.7L Exhaust Help
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Message:
Ok I am going to get 1 5/8" to 3" hooker headers and I want true Dual exhaust for my 4.7L Quadcab dakota, What should I get or do they even make true dual exhaust for 4.7's?
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Marv
Dodge Dakota
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10/17/2006
12:11:39
| RE: 4.7L Exhaust Help
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Message:
Yes. "They" make dual exhaust. They're not true duals, though, because the pipes merge in a x-pipe section. On ebay:
http://cgi.ebay.com/ebaymotors/dodge-dakota-dual-exhaust-with-flowmaster-ss-tip-04_W0QQitemZ170038419315QQihZ007QQcategoryZ33630QQrdZ1QQcmdZViewItem
http://cgi.ebay.com/ebaymotors/00-01-02-03-Dakota-Dynomax-Muffler-Dual-Exhaust-Pipes_W0QQitemZ190040644115QQihZ009QQcategoryZ33630QQrdZ1QQcmdZViewItem
http://cgi.ebay.com/ebaymotors/Dodge-Dakota-Dual-Exhaust-w-Magnaflow-Stainless-Muffler_W0QQitemZ190039961434QQihZ009QQcategoryZ33630QQrdZ1QQcmdZViewItem
Pick yer poison.
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Moo
Dodge Dakota
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10/17/2006
13:07:19
| RE: 4.7L Exhaust Help
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Message:
Umm,... Neither one of thoise auctions are for a True Dual Setup. Those are SI/DO setups.
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Marv
Dodge Dakota
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10/17/2006
13:56:07
| RE: 4.7L Exhaust Help
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Message:
OOPS. Sorry
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GraphiteDak
GenIII
10/17/2006
16:43:48
| RE: 4.7L Exhaust Help
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Message:
I don't think you will find a "bolt on" dual exhaust system. It will need to be custom. best bet would be a muffler shop. unless you don't mind cutting and welding like I had to do. The 4x4 like mine would be the most difficult. A 2wd should be easy. just cut of the cat and install two new onws behind the headers.
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Josh
Dodge Dakota
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10/23/2006
16:19:20
| RE: 4.7L Exhaust Help
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Message:
I was thinking of true duals before I went with the gibson .The muffler guy said they could do it but would have to run them both down one side of the truck then branch them off at the end it is 4wheel drive and yes I would have to remove the S
spair tire undernieth I said Na..Oh yea you dont need two Cats he said the sensor is made to only detect one so his plan was to leave the cat on the right side only run the left side naked he said would be fine.
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Grant
Dodge Dakota
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10/23/2006
18:26:54
| RE: 4.7L Exhaust Help
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Message:
Come right off the cats, dip down under the frame on each side and back up to side pipes. That would be true duals.
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GraphiteDak
GenIII
10/25/2006
01:49:23
| RE: 4.7L Exhaust Help
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Message:
Only SOME Dak's have the dual PRE CATS. If it's like mine, it only had the one CAT.
I bought two new cats (to be the same) and ran one on each bank. The O2's are before and after just ONE of the TWO Cats.
The two cats are staggered, the left bank first as it curves and faces towards the rear. the right bank then behind that one for clearance issues.
The dual pipes run together on the right side. Through the dual Flowmasters.
The pipes continue side by side going OVER the rar axle on the right side and this is where they start to criss cross sending my right bank piping out the left rear of the truck.
SPARE TIRE still intact and I went 2 1/32 pipe to 3 1/2 pipe right around there.
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GraphiteDak
GenIII
10/25/2006
01:51:44
| RE: 4.7L Exhaust Help
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Message:
Oh yeah. This section was the hardest in my project.
There is little room to run these mammoth 2 1/2" pipes around the front drive shaft and tranny.
I had to make some tight bends by cutting and butt welding the exhaust. It fits like a glove and no muffler shop can make these bends with a tube bender. It's too tight.
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