Jeep Garage  - Jeep Forum

Jeep Garage - Jeep Forum (http://www.jeepgarage.org/forums.php)
-   Engine Performance/Intake/Exhaust (http://www.jeepgarage.org/f183/)
-   -   Durango headers? (http://www.jeepgarage.org/f183/durango-headers-73748.html)

hemi_shox 04-06-2014 09:02 PM

Durango headers?
 
I've been a little cabin fevered so I looked around and let my thoughts flow. I'd love headers for a 5.7 WK but I don't want to spend the money for custom and I can't find and used srt8 ones. so I did some research on the Durango of the same year and engine. The tranny and engine block are the same, including ports. Would it be worth it to try and fit them? Is there any reason this wouldn't work? I'm just trying to find another solution to our header issue. I have contacted ARH so I'll see what they have to say.

here's the two options I was thinking about

Gibson Headers - Gibson Performance Exhaust Headers - Ceramic, Chrome & Stainless Exhaust Headers - 50+ Reviews

I know it's a log, but I looked on some Dodge forums and guys did see and feel noticeable improvements in throttle response, hp and mpg

JBA Headers - 220+ Reviews on JBA Cat4ward Exhaust Headers - Stainless, Ceramic & Chrome Finishes

this is my preferred option, as they are actual headers. They have the EGR port and come with everything to modify the mid pipe. I don't remember whose they were, but they look very similar to a custom set I had seen on this site.

I'll be adding a Corsa exhaust if I can get these to fit. I'd be glad to dyno before and after if everything works out and I can find a dyno in my area.

opinions and thoughts?

Gojeep 04-07-2014 04:16 AM

Re: Durango headers?
 
I used OBX SRT8 WK headers as they were cheaper than I could even buy the stainless tubing for!
http://www.jeepgarage.org/f14/grand-...-19627-40.html

hemi_shox 04-07-2014 06:16 PM

Re: Durango headers?
 
Awesome! Those are definitely an option now. Do you suggest the catted or no cats and just welding stock ones in?

Gojeep 04-08-2014 03:49 AM

Re: Durango headers?
 
Quote:

Originally Posted by hemi_shox (Post 1004739)
Awesome! Those are definitely an option now. Do you suggest the catted or no cats and just welding stock ones in?

No cats as you will get a check engine light otherwise from theirs. Can't weld the stock ones straight in as too big unless you use offset transitions. Be easier to get the ones I used unless there are others out there now that are the same size and compliant?

hemi_shox 04-09-2014 08:42 PM

Re: Durango headers?
 
Anyone else have thoughts or opinions as to why this would or wouldn't work?

jtodaro 05-21-2014 06:43 PM

Re: Durango headers?
 
hemi_shox, Did you ever try fitting these and did it work out?

jeepgcoman 05-21-2014 08:55 PM

Re: Durango headers?
 
2 Attachment(s)
As many of you know, I had a custom set built about 3 1/2 years ago. When the guy did them, his first thought was to get some JBA's for an LX and modify them to fit. He ended up building them from scratch because JBA wouldn't work with him, either on purchasing the separate header components (so he could mod. them), or any info. regarding the potential fit on a 5.7 WK.

I still believe that the LX JBA's could be made to work. Since I have a Hemi LX with JBA shorties and the WK with custom headers, I think that with very little, if any work, they can be made to work. I just went out and looked (again) at both and it almost looks as though the JBA's are in tighter (to the engine) than mine are on the WK. If this is indeed true, the LX rails are even closer together than the WK's. IMO, this would probably be the least expensive way to "experiment", as JBA Shorties cost less (they've been around for about 8 years) and used ones are sometimes available over on the LX forums. Also, since they're shorties, you wouldn't have the transmission case interference or the EGR port problem that you would have if you used a stock SRT headers. The "Y" pipe would have to be modified a bit, but any good muffler shop should be able to do that for cheap. The stock LX manifolds and the JBA's both have the O2 Sensors on the manifolds/headers, so changing them would also be much easier than they are on the stock WK. Again, IMO, the only very slight downside might be the collector size. The collector size on my custom ones is 3 in., while the size of the JBA's is 2 5/8 in. The stock pipes size on the LX dual exhaust is 2.25 in. My complete system on the WK is single 3 in. (straight through) all the way back. These would still be way better than the stock WK logs though. If you didn't want to spring for the $$$ of the JBA's, you could also get some LX logs, which are quite a bit better than the stock WK ones. Don't know if you've seen the differences between the stock WK logs and the LX logs, or the stock WK logs next to my custom setup but, if not, here are some pix:

EDIT: If you live in a state that has emission testing, without the cats., as indicated in Post 4 above, you'd for sure get a light and fail the test. The only way to get around that (and I don't know if they'll even do it anymore) is get a Diablosport CMR tune that shuts the rear O2 Sensors off.

greenwayer 05-22-2014 10:07 AM

Re: Durango headers?
 
I also have OBX headers on mine. I have seen american racing headers done on the 5.7 as well


Sent from my iPhone using JeepGarage

jtodaro 05-22-2014 10:09 AM

Re: Durango headers?
 
Quote:

Originally Posted by greenwayer (Post 1026294)
I also have OBX headers on mine. I have seen american racing headers done on the 5.7 as well


Sent from my iPhone using JeepGarage

What has to be done to fit the OBX headers on a 05-10 5.7?

greenwayer 05-22-2014 10:12 AM

Re: Durango headers?
 
Dipstick needs to be bent or swapped with a 6.1 one


Sent from my iPhone using JeepGarage

jtodaro 05-22-2014 10:14 AM

Re: Durango headers?
 
Quote:

Originally Posted by greenwayer (Post 1026298)
Dipstick needs to be bent or swapped with a 6.1 one


Sent from my iPhone using JeepGarage

That's it? Then why isn't everyone running them?

greenwayer 05-22-2014 10:18 AM

Re: Durango headers?
 
Quote:

Originally Posted by jtodaro (Post 1026302)
That's it? Then why isn't everyone running them?


I don't know man they should be, you don't even need to trim the bell housing they are a direct fit. Installing them is a bit of a pain, but all headers are. Maybe headers are something only the SRT guys are interested in...


Sent from my iPhone using JeepGarage


All times are GMT -5. The time now is 01:05 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community