Re: Durango headers?
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.
05 LX/RT & 06 WK/GCO, modded similarly, MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI W/Add Air Inlet, K&N Filter, Sonnax Trans Press Booster, SC Tuner W/Adv Trans Tuning App, DS Tuner, Cust tube headers w/3 in. catback, Bilsteins, SRT frt/rear bumpers, Eibach SRT Lwr Sprgs & Sways, FRI Sidewinder Cam Adv 2*, 6.1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils/.060 plug gaps. 20 in. SRT Reps.