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Unread 04-21-2012, 06:52 AM   #1
dano64
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2002 KJ Liberty 
 
Join Date: Feb 2012
Location: Mackinaw, Il.
Posts: 17
Best exhaust for a Liberty

I know it has been asked before but I'm asking again.
What is the best exhaust for sound, power, increased mpg and for the $$$$, made for a Liberty?

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Unread 04-21-2012, 07:35 PM   #2
Zack87
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2005 KJ Liberty 
 
Join Date: May 2009
Location: Clayton, NC
Posts: 99
Im running a Thrush Welded.
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Unread 04-22-2012, 07:55 AM   #3
02blue
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2002 KJ Liberty 
 
Join Date: Aug 2011
Location: Frederick, MD
Posts: 340
I have a Borla dual catback and it sounds awesome. BUT they are expensive (I think about 600) and I have to agree with powerslave it was probably equipped for best power and torque from the factory. I put an AEM Bruteforce intake on and the two combined probably helped a bit but tough to tell since I bought my 02 with this exhaust already on it. My current gas mileage is about 16mpg mixed and I have put about 100k on it in sometimes salty northern MD and it seems like a tough well built exhaust but makes it tough to change the gear oil in the rear diff!
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Unread 04-22-2012, 08:38 AM   #4
streetglideok
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2005 KJ Liberty 
 
Join Date: Jul 2011
Location: Colorado Springs, Colorado
Posts: 2,372
The way new vehicles are designed, its tough to really improve on what is there from the factory. They already breath really good, and alot of add-ons out there hurt power if anything in practical. real world use. Now if you want noise, loud farting UPS truck noise from a V6, then you can get one of the many mufflers out there. Keep in mind, reducing back pressure has a negative impact on the lower end of the power band, the area you need most.
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Unread 04-22-2012, 04:03 PM   #5
mocktwo
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2004 KJ Liberty 
 
Join Date: Feb 2011
Location: enfield, ct
Posts: 76
I have a magnaflow cat back and k & n fipk intake. Sounds great but no real world gains
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Unread 04-22-2012, 04:58 PM   #6
iMTB
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2005 TJ Wrangler 
 
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Location: Florida
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Probably stock.
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Unread 04-22-2012, 05:23 PM   #7
tjkj2002
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2002 KJ Liberty 
 
Join Date: Dec 2009
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I run a MagnaFlow 14" UltraFlow race muffler and then just a turndown.Have to since room was not there for anything else due to the long arms.Yeah lost some low end power but if all goes well this summer I won't have to worry about power when the V8 goes in.
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Unread 04-22-2012, 05:43 PM   #8
WA_KK
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2008 KK Liberty 
 
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Quote:
Originally Posted by tjkj2002 View Post
i run a magnaflow 14" ultraflow race muffler and then just a turndown.have to since room was not there for anything else due to the long arms.yeah lost some low end power but if all goes well this summer i won't have to worry about power when the v8 goes in.
hemi?
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Unread 05-17-2012, 05:13 PM   #9
05JEEPLIBERTYKJ
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2005 KJ Liberty 
 
Join Date: Nov 2011
Location: plymouth, connecticut
Posts: 35
Quote:
Originally Posted by Zack87
Im running a Thrush Welded.
hows it sound any good? Thinking about getting one
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