Anyone else running the Jegs Dynomax 2.5" cat-back?

94CountryXJ · Nov 1, 2008

Anyone else running the Jegs Dynomax 2.5' mandrel bent cat back? I just put a new front pipe and their kit on with no cat and man it sounds sweet. Especially under load. Sounds nice and throaty at idle too. Not a bad deal for $110! :05of5:

markw · Nov 1, 2008

I'm running it, works great, full 2.5" system from the header back, with a Borla header.

94CountryXJ · Nov 1, 2008

I just need the header now. I'm running the stocker but, it still sounds great.

FreemansXJ · Nov 1, 2008

Do you have a link?? The only thing I saw said it was 2.25 pipe.

Thx,

JOhn

94CountryXJ · Nov 1, 2008

http://www.jegs.com/i/JEGS/555/30496/10002/-1

That's the one I ordered. It's 2.5" and then I ordered the front pipe locally.

Mike H. · Nov 1, 2008

dual outlet muffler... weird.
any pictures of it installed?

emr1101 · Nov 1, 2008

94CountryXJ said:
Anyone else running the Jegs Dynomax 2.5' mandrel bent cat back? I just put a new front pipe and their kit on with no cat and man it sounds sweet. Especially under load. Sounds nice and throaty at idle too. Not a bad deal for $110! :05of5:

holy crap $110?????????!!!!!

Cody90XJ · Nov 2, 2008

Anyone have an installed pic? The price looks great but, the pic is hard to imagine on a Cherokee.

1990JEEPXJ · Nov 2, 2008

Cody90XJ said:
Anyone have an installed pic? The price looks great but, the pic is hard to imagine on a Cherokee.

its not dual outlet. thats the general overview of what most of the kits like it come as. but in the cherokee specific description, it says single. i would sure hope it looks like any other replacement muffler

IslanderOffRoad · Nov 2, 2008

Mike H. said:
dual outlet muffler... weird.
any pictures of it installed?

No, its single outlet. Pictures shown are of a different vehicle's system.

southernrebel20 · Nov 2, 2008

You said you sourced your downpipe locally, were did you get it? I would like to get one with mandrel bends in 2.5". I have a great performance exhaust shop close to me, but they like to do all the install and welding and not sell any parts and I'm won't spend extra money on something I can do myself.

2001XJ · Nov 2, 2008

Hey, I noticed it only goes as new as 2000, could you use it with a 2001? I am assuming the only difference is flange design but I could be wrong.

TIA

wolfpackjeeper · Nov 2, 2008

doesn't the 01 have precats and a different exhaust layout?

markw · Nov 2, 2008

I'm running this one:

http://store.summitracing.com/partd...908280+4294908279+4294840046+115&autoview=sku

FlexdXJ · Nov 3, 2008

I'm pretty happy with my 2.25 with stock cat and no header. Bet 2.5 all the way through sounds nice

FreemansXJ · Nov 3, 2008

94CountryXJ said:
http://www.jegs.com/i/JEGS/555/30496/10002/-1

That's the one I ordered. It's 2.5" and then I ordered the front pipe locally.

Thanks!!

John

fordtech · Nov 3, 2008

94CountryXJ said:
http://www.jegs.com/i/JEGS/555/30496/10002/-1

That's the one I ordered. It's 2.5" and then I ordered the front pipe locally.

Have you confirmed its really 2.5? I don't see where Jegs says it is. Every XJ Dynomax system I have ever seen is 2.25, including the 2 I have gone through on my 98.

2001XJ said:
Hey, I noticed it only goes as new as 2000, could you use it with a 2001? I am assuming the only difference is flange design but I could be wrong.

TIA

The latest one (month or 2 ago) I bought came with the flange adapter.....

hubs97xj · Nov 3, 2008

The adapter is pn 51008. Lists as being a replacement for this kit (mentioned above)

http://store.summitracing.com/partd...t=WLK-17463&N=700+4294922451+115&autoview=sku

But it's also included in this kit

http://store.summitracing.com/partd...t=WLK-17340&N=700+4294923429+115&autoview=sku

The parts list mentions this flange adapter as being needed on 00-01 Cherokees. If the kits from Jegs and Summit are the same, it's not 2.5", but the flange would make it work with either (although you could probably buy one from someone with extra parts for a lot less than 35 bucks, which seems a ridiculous cost for a short chunk of 2.25" pipe with some studds and a stamped flange).

My buddy has a 2000, and he's been interested in an putting together a budget exhaust system, and I've been wondering about the first kit. Can someone confirm the pipe diameters, not just at the tip but at the muffler and at the cat?

TwistedFocus · Nov 3, 2008

I had the Jegs catback on my 90 that I sold recently. I didn't actually measure it, but it definitely looked like it was larger in diameter than the stock pipe size (is it 2-1/4 or 2"?).

I think it would fit on my 2001 just fine with a cheap flange and a bit of trimming to make up for the length. Worst case I could break down and buy the adapter linked above. I may get one soon and find out.

Tdad · Nov 4, 2008

hubs97xj said:
http://store.summitracing.com/partd...t=WLK-17463&N=700+4294922451+115&autoview=sku

My buddy has a 2000, and he's been interested in an putting together a budget exhaust system, and I've been wondering about the first kit. Can someone confirm the pipe diameters, not just at the tip but at the muffler and at the cat?

The instructions for the first kit say it fits 87-90 XJs.

Anyone else running the Jegs Dynomax 2.5" cat-back?

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