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  #61  
Old 05-06-2014, 07:40 AM
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Re: Borla vs. Corsa

I recently sold my 2006 Jeep Grand Cherokee Limited with a 5.7 engine. I had a Magnaflow catback on it and a K&N FIPK, and LOVED the sound of it when you got on it. It definitely had a musclecar sound to it. I recently purchased a 2012 Jeep Grand Cherokee Laredo Altitude edition with a 5.7, and had planned on making the same mods to it, but decided to do a little research first. In reading on the various Jeep forums the member responses to the threads associated with aftermarket exhaust systems, the big complaint associated with the Magnaflow, Flowmaster and Borla exhaust systems was the in-cabin drone that was experienced when the engine was running in the ECO mode. I definitely did not want a system with that issue, as I have a catback exhaust system on my 2002 Firehawk that has a bad drone at a certain cruising rpm, but with a 6-speed manual tranny you can go up a gear of down a gear and get rid of it. Not so easy with an automatic, and I didn't want to run around all the time in the Tow/Haul mode.

I did some research on the MoPar Performance Parts catback and pretty much everyone reported no drone with it at any speed, and then found out that Corsa made that system for MoPar Performance Parts. Someone I know that owns a muffler shop tried to discourage me from buying the Corsa, stating that they were cheaply made and tinny sounding, but he is a distributor for Magnaflow and Flowmaster, so I took that advice with a grain of salt. I did some extensive research on the construction of the these 4 systems and the materials and construction of the Corsa system ranks pretty much at the top in all aspects, plus it is constructed with 304 stainless, whereas the Magnaflow and Flowmaster are constructed of the cheaper 409 stainless. The Borla is also constructed with 304 stainless.

Bottom line, I bought the Corsa system and love the sound of it. I've had it up to cruising speeds of 75 and around town driving and have heard no drone whatsoever when running in the ECO mode, and in fact the factory system had a slight drone when running in that mode, and that is now gone. Next I'll install the K&N CAI.

Looking at it from the back, I agree that the Borla is cleaner looking, but the look of the Corsa to me is no way objectionable. It's really not that noticeable unless you look at it from a really low angle. The sound of the Corsa is a lot different that the sound of the Magnaflow on my 2006...much raspier, and the newer Jeeps CK2s with the Magnaflow don't sound anything like my 2006 CK did, but the exhaust systems are completely different on these two vehicles...single exhaust vs true duals on the newer ones.

Overall I'm very happy with the Corsa...and extremely happy that there is no drone. Looking forward to getting the K&N installed, and completing the package.
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  #62  
Old 05-07-2014, 08:06 AM
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Re: Borla vs. Corsa

Quote:
Originally Posted by jimb0 View Post
Next I'll install the K&N CAI.
I am considering a CAI for my Summit and was just wondering if there was a reason you are getting the K&N over the Volant? I'm trying to decide which one. I was leaning towards the Volant because of the other user reviews I have read. Thanks!
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  #63  
Old 05-07-2014, 08:25 AM
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Re: Borla vs. Corsa

I didn't really consider the Volant. I've had good luck with K&N in the past, have their CAI on several vehicles, it's a good looking package and got a good price on the K&N.
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Old 05-15-2014, 12:10 PM
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Re: Borla vs. Corsa

Since the summit has rectangle tips instead of round like all other gc 2014 models I reached out to borla directly asking about other tip options.
Borla tells me that the s type car back exhaust will not even fit the summit. After deeper discussion all that can be done to the summit from borla is a new muffler/tip to get the burly sound but not necessarily any more performance.
Is anyone else aware of this?
If so can anyone tell me the circumference of the stock pipe? Borla needs this to tell me the right muffler/tip for the 2014 summit.
Thanks all. Jeep garage has been great in helping me chose what my next vehicle is going to be and what mods I want to do to it.


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  #65  
Old 05-15-2014, 12:29 PM
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Re: Borla vs. Corsa

Hey yesitis, it mainly depends on what motor your running, I know that the 5.7L V8 has the same exhaust across all 2012-2014 JGC .. the summit just has rectangular tips.. anyways the 5.7LV8 has a 2.25inch exhaust pipe diameter.
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Old 05-15-2014, 12:32 PM
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Re: Borla vs. Corsa

Awesome. Thanks. Sorry I left that out. I would be getting the 5.7 hemi.
I want the SRT but feel that the summit is a better bet for my and my families needs. No one says though that I can't modify a summit to be closer to an SRT. Lol. Thanks again!


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