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Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

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Best muffler for JK

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Old 05-18-2011, 03:09 PM
  #21  
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I have the Corsa DB axle back on mine and I think it made a nice difference..
Just My Opinion and I have had a lot of compliments on it..
Bill
Old 05-18-2011, 03:15 PM
  #22  
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I have the dynomax catback single exit and I have all sorts of positive things to say about it! !
Much lighter .. sounds amazing
. and better mpg
Old 05-18-2011, 04:26 PM
  #23  
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Originally Posted by Eagle78
I have the dynomax catback single exit and I have all sorts of positive things to say about it! !
Much lighter .. sounds amazing
. and better mpg
Is this the "rockcrawler" system or OE placement?
Thanks!
Old 05-18-2011, 04:37 PM
  #24  
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Originally Posted by jjntj2003
I'm no where near an expert but put the mbrp off road exhaust on mine yesterday. It sounds great loud when you step on it but 80 on the interstate no drone talk in normal volume. As far as hp it's a jeep but it does seem to breath a little easier, now if I can get the K&n drop in and programmer.
I'm looking at this same system. Can you get a sound clip and post it for us?
Old 05-18-2011, 05:20 PM
  #25  
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Originally Posted by Dynomax
what suspension are you going with? And congrats on new suspension and exhaust!
Off Road Evolution is installing their Double Throwdown with Evo Lever...the new exhaust is a must with this set up, but was going this direction regardless.
Old 05-18-2011, 05:22 PM
  #26  
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Originally Posted by pluke the 2
lol this is the same as asking what color jk goes the fastest
black w/black wheels goes fastest
Old 05-18-2011, 06:21 PM
  #27  
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Originally Posted by Dynomax

Is this the "rockcrawler" system or OE placement?
Thanks!
Oe replacement.
Very easy to install..
I am getting about .07 mpg better so far ( 300 miles) my foot might be in it a little more just to hear the tone
Old 05-19-2011, 06:43 PM
  #28  
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Originally Posted by NebRedrocker
what is the part number for the stock replacement muffler. I would like to replace just the muffler not the whole catback. thanks Kendall

Look to Ultra Flo 17222.
Stainless Steel 17222 4 1/2 x 9 3/4 19 14 2 1/2 2 1/2

Sorry I missed this earlier today.
Thanks!
Old 05-20-2011, 02:25 AM
  #29  
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I have a Flowmaster 50 stainless steel installed in the stock location.. picked it up for $79 and had it welded in for $75

I couldn't be any happier. it has a nice low roar and goes away as the speed increases. A sound clip does not do it justice..

I did lose some low end tourqe in 4lo from what my stock muffler use to give me.
Old 05-20-2011, 06:53 AM
  #30  
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will the dynomax stock replacement muffler fit right up without any modifications? (unclamp stock muffler and remove, install dynomax in same place?)


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