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OEM Tech Discussion Forum for OEM (Original Equipment) or stock XJs and MJs.

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  #1  
Old December 4th, 2018, 21:23
seanof30306@yahoo. seanof30306@yahoo. is offline
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Muffler Recommendation?

So last summer my cat started rattlin. When I went to have it replaced the guy told me my 20 yea-old muffler had a hole in it too, so I had him replace it with a stock one. I like my Jeep quiet.

It worked fine for a year and a couple of months. The only thing I didn't like about it was when I'd floor it, the exhaust note would turn into this loud "whoosh".

A couple of weeks ago the exhaust started buzzing. Quickly got worse. Looked under the car and the muffler is split.

I'm looking for a replacement; quiet, and no whoosh.

I thought about the Walker SoundFX, but three out of four reviews on Summit were awful, and all for the same thing ... failure.

https://www.summitracing.com/parts/w...model/cherokee

Does anybody have a recommendation?
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  #2  
Old December 4th, 2018, 23:15
md21722 md21722 is offline
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Re: Muffler Recommendation?

I just run whatever Advance sells for cheap and its been fine for 4 years / 60K.
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  #3  
Old December 5th, 2018, 12:39
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devildog0 devildog0 is offline
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Re: Muffler Recommendation?

Flowmaster series 50? I've ran a series 40 and a 50 and liked them both. The 40 made for more interior noise though. The 50 was better to me because it made less noise overall.
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  #4  
Old December 5th, 2018, 19:19
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alexgalexg alexgalexg is offline
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Muffler Recommendation?

My flowmaster super 44 is loud but I dont recommend anything from that brand. 1 year old and it looks like its original with the car. Junk. Dynomax makes excellent exhaust systems I recommend using that

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  #5  
Old December 5th, 2018, 20:52
cody4359 cody4359 is offline
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Muffler Recommendation?

I have a flowmaster delta 50 on my mj, for a few years it was just dumped under the bed. Then I had it routed out and it quieted down alot, yet still annoying. Perhaps it's because it's a regular cab that it resonates so bad but I picked up another xj and it has a walker 17917 muffler. Nice little hum while idling and a decent tone under load. If I keep the Comanche illrobly put that muffler in its place

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  #6  
Old December 6th, 2018, 07:58
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techno1154 techno1154 is offline
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Re: Muffler Recommendation?

Maybe the OP got a bad unit,...maybe the requirements of some are different than others?

My XJ is fitted with a Flow Master 50 since 2003 and it is still looking (almost) as good as new which includes a winter in Des Moines IA in 2007. It is one of Rusty's offroad package with 2.5" all the way back. It used to be a bit annoying at some RPM's. My solution was to remove the last 18" of the 2.5" pipe and replace it with the OEM piece. The XJ lost some low end/off idle power which was regained after the tail piece was replaced with the OEM piece.

I did not want to use some discount store fiberglass filled muffler and I did not want to spend a lot of money for something I often drag across rocks. The FM 50 foot the bill.
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1996 XJ; 4.0L; AW4; NP231; SYE; D30 and D44; ECTED; 4.10 gears; 30X9.5 -15 BFG/AT/KO; 3" lift; Rusty's LCA; JKS ADJ UCA; Kevins ADJ Track bar; Drawtite Front Receiver; Dual Electric Fans; Dual Battaries.
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  #7  
Old December 6th, 2018, 13:03
Trouble Trouble is offline
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Re: Muffler Recommendation?

Currently have a magnaflow on mine and its very quiet, i cant stand noise. i also have had good luck with dynomax ultra flo ss on other vehicles. pretty much the same design.
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  #8  
Old December 6th, 2018, 17:37
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devildog0 devildog0 is offline
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Re: Muffler Recommendation?

Quote:
Originally Posted by Trouble View Post
Currently have a magnaflow on mine and its very quiet, i cant stand noise. i also have had good luck with dynomax ultra flo ss on other vehicles. pretty much the same design.
Is there a specific model of Magnaflow that you recommend?

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  #9  
Old December 6th, 2018, 17:42
Trouble Trouble is offline
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Re: Muffler Recommendation?

they offer a straight thru i wanna say i did the 4x9 x 18" body. 2.5in/2.5 out then ran the tail pipe back out past the bumper like stock. This came after years of running a small race muffler with a turn down before the axle.
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  #10  
Old December 6th, 2018, 18:54
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ehall ehall is offline
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Re: Muffler Recommendation?

I use the budget Borla mufflers, good quality stainless and inexpensive, not loud (but not exactly quiet either)
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  #11  
Old December 7th, 2018, 07:59
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techno1154 techno1154 is offline
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Re: Muffler Recommendation?

Quote:
Originally Posted by ehall View Post
I use the budget Borla mufflers, good quality stainless and inexpensive, not loud (but not exactly quiet either)
Borla should be a good product,...they usually are. I will look into it next time I need one.
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#594
1996 XJ; 4.0L; AW4; NP231; SYE; D30 and D44; ECTED; 4.10 gears; 30X9.5 -15 BFG/AT/KO; 3" lift; Rusty's LCA; JKS ADJ UCA; Kevins ADJ Track bar; Drawtite Front Receiver; Dual Electric Fans; Dual Battaries.
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  #12  
Old December 9th, 2018, 11:18
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Johnnie Walker Johnnie Walker is offline
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Muffler Recommendation?

Magnaflow , dynomax ultra flo.
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  #13  
Old December 13th, 2018, 22:23
jeffnboise jeffnboise is offline
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Muffler Recommendation?

Cherry Bomb. Use the money use save for other things. It's only a muffler.

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