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Unread 02-28-2008, 08:25 PM   #1
namtrah
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Borla Exhaust review

I installed a Borla cat-back exhaust last fall. The system is very well built with stainless steel. The clamps are higher quality than the standard cheapos at the parts store. The install was straight forward and fairly easy. The tough part was removing the old muffler. Some cutting and grinding was needed in tight quarters.

The sound is nice, a bit more throaty, but not overwhelming. However, when you get up to 70mph on the freeway, it droans like crazy. This is very annoying and makes your ears hurt after 50 miles.

The nice chrome tip is nice as long as you keep it clean. It did not take too long in a Minnesota winter for it to look like crap.

Overall, it is a well built system, but I will look at other mfgs. for my next jeep. Also I wanted to have a stainless header, headpipe, and hi flow cat to complete the system, but to no avail on a 2004 WJ. I hope this helps those looking for a new exhaust.

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Unread 02-28-2008, 08:35 PM   #2
KingPrat
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If you have the V8, they don't make headers due to space issues: There's not enough!

There should be high-flow cats available though, unless you have california emissions and have 2 pre-cats...
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Unread 02-28-2008, 08:39 PM   #3
ntaousakis
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I thought it was a waste of money. My tip is messed up now too. I wish I went the cheaper route and just got a different muffler installed. its 2 1/4" pipping on the borla and the same from factory.
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Unread 02-28-2008, 09:02 PM   #4
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I've never had any real issues with the standard aluminized exhaust piping rusting within a few seasons, other then surface rust. To me going stainless, especially polished, is a bit of a waste.

I think you'd be very happy with the Kolak System.
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Unread 02-28-2008, 09:06 PM   #5
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send an email to kolak@aol.com (Nick) and he sells great exhaust kits.
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Unread 02-29-2008, 02:45 AM   #6
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Hey Dave - thanks for the review. I've been waiting to see if someone would post their honest opinion about it. It seems that there are a lot of Flowmaster and Kolak fanaticals here
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Unread 02-29-2008, 06:50 AM   #7
JayJEEPguy
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You know, it IS possible to clean and polish an exhaust tip.

A little elbow work will make it look as good, or better than, as new.


Does your WJ have the I6 or the V8,?

If you have the V8, do you have just the 2 small pre-cats, 2 pre-cats and a larger 3rd cat?
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Unread 02-29-2008, 08:05 AM   #8
ArloGuthroJeep
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I ran the Borla catback exhaust for a couple years.

I moved to Kolak's 2.5" FM70 setup. Much better and cheaper IMHO.
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Unread 10-05-2013, 10:24 PM   #9
namtrah
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Update

It has been many years since my install of the Borla system on my WJ 4.0L. Aside from the cosmetic blemish of the tip due to corrosion from constant MN winters and the system coming loose and melting the rear bumper cover to it, the structure of the system is good. I have a bit of undiagnosed OCD, so the tip kinda pisses me off and no, it will not come clean, it is pitted from salt spray. Yes, after many years after it has been installed...I would have rather have purchased a different system, just didn't get the cost vs gain benefit. I finally had a muffler shop weld some of the system together to stop the awful rattling. I have never been good at getting an exhaust system to stay where it needs to. I do suppose I could get a new tip and make it shiny again However, I rather have it coated in mud from my last trail adventure anyway. Final vote, don't waste your money, there are other systems available with similar benefits that are cheaper on the pocket book.
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Unread 07-13-2014, 10:48 PM   #10
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Muffler el broko

I just fixed another exhaust leak as the band clamps on the Borla system just don't hold worth a damn. A week later, the sound of another exhaust leak. I look over the system and find that the sheetmetal on the outlet of the muffler has torn. Of course, after searching high and low, no receipt for their million mile warranty. They want about $200 to replace the same muffler, ridiculous! So I will probably be swapping an American made Cherry Bomb muffler in soon. I did get about 6 years of service out of it before it failed. In retrospect, i would have the system fully welded initially and toss the band clamps. I would also probably go with a different mfg and not waste so much money on it.
borla-muffler-fail.jpg  
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2004 WJ Laredo-4.0L-Amsoil Synthetics-K&N FIPK-Borla Catback with Hi-Flow Cat-2" RC BB JKS Track Bar and Frt BPE, ADDCO Rear Sway Bar Future: putting together 4" lift
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Unread 07-14-2014, 12:34 AM   #11
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That last photo made me reminisce! I had a Borla catback on my 1993 ZJ way, way back in the late 1990s and the muffler tore in _exactly_ the same way. I threw the entire thing in the trash and put together a custom 3" setup which was the foundation for my Kolak Exhaust. So I owe it all to Borla for the motivation
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Unread 07-14-2014, 05:46 AM   #12
Technohead
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Quote:
Originally Posted by Kolak View Post
That last photo made reminisce! I had a Borla catback on my 1993 ZJ way, way back in the late 1990s and the muffler tore in _exactly_ the same way. I threw the entire thing in the trash and put together a custom 3" setup which was the foundation for my Kolak Exhaust. So I owe it all to Borla for the motivation
Same here. Although to be fair the hanger behind the muffler was broken and I did a lot of fast driving off road. Borla sent me a replacement system under their "million mile" warranty.
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Unread 07-14-2014, 08:54 PM   #13
namtrah
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No receipt

Yeah, it says they require the receipt. After two moves and about 6-7 years, no idea where it is. Probably in the ex-wife's file cabinet with my luck.
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