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Dual Exhaust #858267 01/08/08 01:58 AM
Joined: Apr 2006
Posts: 97
JTW Offline OP
Getting the Wheeling Fever
Well my exhaust is all rusted out and fall'n apart so I'm going to take it all out and start from the headers and work back. Was wondering if anyone with a Trooper (2.8L) has done a dual exhaust system and what they thought of it, how they did it, and if it was worth it. Thanks mates! <img src="/forums/images/graemlins/cheers.gif" alt="" />


1991 Trooper, 3.4L, holley tbi, 3" body lift on 33" bfg AT's, indy HD lift shackles, G80, MUA 5, Power windows and locks. http://www.cardomain.com/ride/3133352
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Re: Dual Exhaust [Re: JTW] #858268 01/08/08 04:44 AM
Joined: Jan 2005
Posts: 1,528
barak Offline
Body Damage is Cool
You won't have headers on there , unless you did some custom work.Those are just standard exhaust manifolds on there.You can put headers in , but it does take some customizing to make it work.If you do a search on my buildup , I list the parts I used to add headers to my 3.4 swap.I had to change the starter , and have it custom bent where the flex part is where it joins into the main exhaust Y.

I had the flex part taken out and it was custom fabbed for me , as there is not a lot of room to work with.I also went with 2 1/4 exhaust , although some will go to 2 1/2.Going with dual exhaust is going to need some fab work at the back due to how the truck is laid out , and you might find it doesn't up any performance at all.


1996 Jeep Grand Cherokee 5.2 with mods.Hughes Air gap intake , 52MM TB , ford injectors, 2 3/4" lift, Doug Thorley headers , HID headlights with LED , HID fog lights , glow gauges , a few others
Re: Dual Exhaust [Re: JTW] #858269 01/08/08 08:37 AM
Joined: Jan 2007
Posts: 9
C
cos0225 Offline
Need a Spot
recently i purchased a 91 pup 2.6 with a simulated dual exhaust - i wont discuss how the front was altered however near the front of the bed it was split with a y pipe and ran out the back ( no muffler ) similar to the full size chevy and fords everyone sees running around town .
I must say it does sound good , not too loud and a mellow sound . i have never had a chance to drive this truck yet so i cant say how it would affect performance and fuel mpg . hope this helps .

Re: Dual Exhaust [Re: barak] #858270 01/08/08 09:49 PM
Joined: Apr 2006
Posts: 97
JTW Offline OP
Getting the Wheeling Fever
I was thinking of getting a high flow cat then Y if after that to 2 mufflers and run them out the back, not a true dual exhaust but it would look pretty cool I think...


1991 Trooper, 3.4L, holley tbi, 3" body lift on 33" bfg AT's, indy HD lift shackles, G80, MUA 5, Power windows and locks. http://www.cardomain.com/ride/3133352
Re: Dual Exhaust [Re: JTW] #858271 01/08/08 09:52 PM
Joined: Jan 2000
Posts: 2,437
lttlbddy Offline
Body Damage is Cool
That's your answer. Is will cost more, you will see no performance gain but if you want to do it for the looks, it's cool with us.

Re: Dual Exhaust [Re: lttlbddy] #858272 01/08/08 11:39 PM
Joined: Jul 2001
Posts: 1,810
paulevans76 Offline
Body Damage is Cool
I had duals on my 1st trooper, a 91 2.8 (dual exit muffler IIRC). I ended up just changing to single 2.5" after the cat to improve my departure angle and to see what kind of performance I'd get. small increase in 3k+ rpm power and maybe a little tiny bit better mpg, but nothing spectacular. nothing that I would do until it needed new exhaust.

Any good exhaust shop should be able to do what you need. If money wasn't an object, I'd probably get it new from the manifolds back. dual hi-flow cats, h-pipe, then dual mufflers. mandrel bends and either 2" or 2.25" pipe.

I hear a lot of good things about spintech products, and when I get to the point where I have to redo my exhaust, I'm going to try them out.


88 Troop - Posing yard art







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