4.7 headers - Dodge Durango Forum
Headers & Exhaust Parts Info Links : Headers * Exhaust

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post #1 of 25 Old 07-08-2011, 10:08 PM Thread Starter
spx1981
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4.7 headers

Are headers worth the money on a 4.7 or not? Should i just go for header back exhaust? If so what would be a good brand where has the best prices?
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post #2 of 25 Old 07-08-2011, 10:42 PM
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Headers have been debated many times (do a search). Best bang for your buck would be flowtech headers (from ebay) but I DO NOT trust them. I picked up some Gibson headers and will install them soon. Its been proven that your ehaust will have a deeper tone however no one really has any dyno sheets to back up HP gains

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post #3 of 25 Old 07-08-2011, 10:53 PM Thread Starter
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Mad mike your the man maybe this would be easier if ya just gave me your parts list and i'll copy off ya as money permits, this is supposed to be my wifes DD and my tow truck to the drag track for my toy, for some reason the work horses turn into toys as well you know how it goes
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post #4 of 25 Old 07-09-2011, 12:29 AM Thread Starter
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JBA shorty's any good?
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post #5 of 25 Old 07-09-2011, 01:15 AM
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I've got Gibson shorties on mine as well, only advice I can give is if you're gonna buy them, don't waste your time with anything but stainless or ceramic coated headers, the chrome and normal painted steel ones will not last. Imo, they are in no way shape or form worth the money, the only headers that are worth it would be long tubes, which aren't made for the 4.7L. If I had to do it all over again there's no way in hell I'd spend that much money on something that useless again.

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post #6 of 25 Old 07-09-2011, 01:19 AM Thread Starter
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great info thanks!
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post #7 of 25 Old 07-09-2011, 04:32 AM
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Everyone I know that has them said they were a waste of money and time as they are a pain in the ass to install.
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post #8 of 25 Old 07-09-2011, 03:53 PM
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Imo they were easy as pie to install, but maybe thats just cause I did mine with low enough mileage on the truck and the bolts that held the manifolds on were still in good shape. Only 1 of the bolts on the driver's side is a pain cause there isn't enough room to use a ratchet or a ratcheting wrench, gotta go old fashioned and use a normal wrench lol.

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post #9 of 25 Old 07-09-2011, 11:19 PM
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I've had headers on other trucks before, so I went the "no hassle" route with my '01, and modded totally downstream of the manifolds: primaries/y-pipe/hiflow cat./muffler/duals. You could check some of AIRRAM's input on the subject. Chrysler took great pains to make the factory manifolds efficient, claiming that they flowed within 2% of headers (back in 1999).

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post #10 of 25 Old 07-10-2011, 03:19 AM
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I run gibson stainless on mine with no problems and also did mine with low mileage so none of the bolts were rusted


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post #11 of 25 Old 07-10-2011, 04:00 PM
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I have Gibson SS on mine. I think I busted 2 of the manifold studs and basically destroyed the manifold shields trying to get them off! I think I used a vice grip on 1 stud and a small pipe wrench to get the other stud out. A flex head ratcheting wrench is a must! I really didn't enjoy getting the bolts in the passenger side back tube if I remember correctly!
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post #12 of 25 Old 07-10-2011, 07:19 PM
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I have the ceramic coated Flow-techs on my 01. I already had a magnaflow cat back and magnaflow converters and Y-pipe. I wanted ceramic coated headers but didn't want to pay the price of Gibsons or JBA. I went with the Flow-tech's they are well build however will need modified to fit properly. The bolt holes on the passenger side do not line up. You will have to open bolt hole on the passenger side header to get them to line up. For the price I paid I'm really happy with them.
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post #13 of 25 Old 07-10-2011, 09:52 PM
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as I said in an older thread, stay away from flowtech headers, they're junk, I wasted 250 bucks on a set of those, all they did was leak and rust, holes did not line up on the passenger side either, I bought a set of gibson nickel chrome headers, and everything went great, no problems, they look great and my truck sounds good, installation is very easy on the 4.7 especially if its on a 4x4
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post #14 of 25 Old 07-10-2011, 11:30 PM
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When I was looking for headers the only ones that I found at that time that someone didn't complain about fitment was the Gibson's, perfect fit! I even like the way they leave the bottom holes as a slot rather than a hole so that it makes it easier to put your gasket on with with the lower bolts and then just slide the headers onto the lower bolts and not have to try and keep the gaskets in place at the same time!
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post #15 of 25 Old 07-11-2011, 08:10 PM
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Flowtech sucks. I ran them for 3 months then they cracked at the EGR tube. the passenger side didnt clear the a-arm while in motion, got dented and guess made it fit. steering shaft rubbed on drivers side also. Got JBA and been happy so far
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