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  #1  
Old April 4th, 2016, 08:52
cocco_78 cocco_78 is offline
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exhaust manifold and exhaust recomendations?

01, 4.0L, auto, all stock, with a cracked exhaust manifold.

I see there are a lot of different brands of replacement exhaust manifolds out there, any in particular that are cheap and good?

Also i'm about due for a new muffler and tailpipe, i see Dynomax is having a rebate on their cat back systems. Seems like they have ok reviews and the sound isn't terrible. http://www.quadratec.com/products/77608_801_07.htm
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Old April 4th, 2016, 09:33
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dan1977p dan1977p is offline
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Re: exhaust manifold and exhaust recomendations?

My OE replacement dorman header works great for stock engine. It has a lifetime warranty on it too, so if it cracks, I just need to take it back and get a new one.
I'm interested to hear what folks have to say about the exhaust, though. I need/want to replace mine from the header all the way back with something in the 2 1/4 to 2 1/2 in range.
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Old April 4th, 2016, 09:42
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smokeyyank smokeyyank is offline
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Re: exhaust manifold and exhaust recomendations?

I run a Thrush Welded muffler and love it. For the money I don't think you'll find a better muffler. Cost me $30 through Summit and took it to an exhaust shop to weld it all up with new pipes. Has a nice sound does have some drone on lower range but I'm fine with it.
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Old April 4th, 2016, 09:49
cocco_78 cocco_78 is offline
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Re: exhaust manifold and exhaust recomendations?

I can't have any drone inside the Jeep, Its my dd and I drive it a lot...
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Old April 4th, 2016, 10:11
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smokeyyank smokeyyank is offline
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Re: exhaust manifold and exhaust recomendations?

I DD mine as well it's not an annoying drone and you only really hear it going <15 and up around 2k rpm. Mine is the most noticeable when I'm 4 wheelin going up a incline with the windows down. Past that nothing gnarly. Are you looking for something close to stock then?
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Old April 4th, 2016, 10:17
cocco_78 cocco_78 is offline
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Re: exhaust manifold and exhaust recomendations?

yeah 2k rpm is right at highway speed, right where i spend 90% of my time lol, it would drive me nuts. yeah looking for a better than stock quality replacement. I don't care if its louder outside, just trying to avoid the drone inside.
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Old April 4th, 2016, 13:00
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Re: exhaust manifold and exhaust recomendations?

It's not loud on the highway, just under 15 mph when I'm wheeling with the windows down. Plus i'm sure some of the "speed holes" on the under side of the body aren't helping the sounds inside...... Check out some sound clips on you tube.
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Old April 4th, 2016, 13:19
cocco_78 cocco_78 is offline
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Re: exhaust manifold and exhaust recomendations?

haha, yeah i've been listening to 4.0L exhaust videos most of the day today at work... I had a magnaflow on my last truck and it sound great, low and powerful, no drone on the inside.
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  #9  
Old April 4th, 2016, 17:47
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Re: exhaust manifold and exhaust recomendations?

The dynomax cat-back while cheap under rebate time doesn't last too long if they use salt in your area, so I wouldn't recommend it(buddy's didn't last 3 years and I see the one I inherited from dad has holes in it). Get a stainless steel Borla or Magnaflow muffler and get a 2.25" or 2.5" stainless steel tailpipe from Mandrel Bending Solutions.
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Old April 6th, 2016, 03:20
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Re: exhaust manifold and exhaust recomendations?

Banks manifold, pay for quality once and be done with it. /opinion
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Old April 6th, 2016, 06:07
cocco_78 cocco_78 is offline
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Re: exhaust manifold and exhaust recomendations?

No Banks on this one, its a $1500 XJ with 200k miles on it. Just looking to fix up a couple things on it so I can continue to DD back and forth to work 40 miles a day.
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Old April 6th, 2016, 07:42
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Re: exhaust manifold and exhaust recomendations?

Quote:
Originally Posted by iwannadie View Post
Banks manifold, pay for quality once and be done with it. /opinion
That's why I like the dorman. Keep the receipt and if it ever cracks again, get a new one for free and 30 minutes of your time to replace it.
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Old April 6th, 2016, 09:51
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Re: exhaust manifold and exhaust recomendations?

Quote:
Originally Posted by cocco_78 View Post
No Banks on this one, its a $1500 XJ with 200k miles on it. Just looking to fix up a couple things on it so I can continue to DD back and forth to work 40 miles a day.
You could also have an exhaust shop just re weld the manifold. Had this done on mine when the was rebuilt. It was cheap and it worked. It will depend on the size of the and the location of the crack though. Past that maybe go to a JY and pull a decent manifold.
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  #14  
Old April 6th, 2016, 10:05
cocco_78 cocco_78 is offline
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Re: exhaust manifold and exhaust recomendations?

Hmm, lots of recomendations for http://www.ineedparts.com/apn-jeep-e...-manifold.html on other jeep boards...

Also since i'll have everything apart i'm thinking header wrap to help with underhood temps...
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  #15  
Old April 6th, 2016, 12:26
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smokeyyank smokeyyank is offline
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Re: exhaust manifold and exhaust recomendations?

So here's something else I just found out as I bought a newer 01 XJ to replace my 93. In 00-01 pre cats where added. Not 100% sure if yours has them but from just about everything I'm reading it was across the board. If your's does then it changes everything around your manifold. So that manifold you listed would not work.
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