2013 5.7L V8 GC TrailHawk and my Dyno run. - Page 3 - Jeep Garage - Jeep Forum

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  #25  
Old 04-30-2014, 08:24 AM
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Originally Posted by chwoner View Post




You know I was reffering to his stock numbers right. And I have a little more then just bolt ons.

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  #26  
Old 05-12-2014, 02:00 PM
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Unhappy Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

Okay, so this past Saturday I had my follow up Dyno with the Corsa Exhaust installed.



I was expecting so much more out of this set up. I only gained 7 hp and 2 tq.. I'm second guessing my Corsa purchase. I feel that i could have spent money on 2 Borla mufflers and had my local shop custom bend me 3" SS tubes for 1/3 the price... and gotten the same/similar results.
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  #27  
Old 05-12-2014, 02:13 PM
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Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

so are your numbers still holding true for that huge torque gain?
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  #28  
Old 05-12-2014, 02:39 PM
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Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

yes. I forgot the charts at home. i'll see if i can get a screen shot from the Dyno.
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  #29  
Old 05-12-2014, 03:33 PM
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Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

Quote:
Originally Posted by 14SummitHemi View Post
They admitted, once I pushed them, that the cat-back on the JGC ('vette is diff story, etc..) is primarily for sound.
$1500 +/- For sound only?? yeah not worth it IMHO. I wish I wasn't the guinea pig.. or the first person to do a dyno comparison on this exhaust. I NEVER would have bought this exhaust if i knew i'd only get 7 wheel hp..

meaning that I am sure that i could have my local exhaust shop custom bend me 3" SS pipe from the cat back and add in 2 "high quality" mufflers to get the same "power" and noise increase. Even for 1/2 the price I'd still come out ahead. Then I could have added a Diablo and be about the same price as a Corsa "performance" exhaust, but with more power.
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  #30  
Old 05-12-2014, 04:16 PM
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Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

Yeah agree its all for sound. After my install I felt like the car jumped the line slower than at stock.
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  #31  
Old 05-12-2014, 04:25 PM
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Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

Quote:
Originally Posted by 14SummitHemi View Post
^^^^^^

Not gonna defend the price. Corsa didn't sell you on Xhp increase, you sold yourself on that one. No cat-back will deliver meaningful increases unless matched with headers and properly flowing heads.

Corsa's thing, the thing you paid for, is the no-drone patent. You WILL get drone, most likely mind-numbing, with any other setup.

EDIT: I stand corrected. Your Corsa is same as stock diam, 2.5" so you should not notice any drop off only gain, albeit small. The special run I am arranging has a 3" diam so that is why I experienced a small low-end loss.
holy shit.. now i am even more pissed.. i was about to say "wrong i ordered the 3 inch" because that is what the web site stated they were on 03/24/2014. I even confirmed that with AutoAnything.. now the website says 2.5" what a scam..
Now i am LIVID!!


DO NOT pay the money for the Corsa Exhaust. period.
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Old 05-12-2014, 04:30 PM
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Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

Quote:
Originally Posted by Corsa website
Each system is designed to increase vehicle performance, deliver an AGGRESSIVE SOUND under acceleration and a DRONE-FREE EXPERIENCE during cruise.
I guess 7hp is an "increase".. but i was hoping for more than 2.7% hp and 0% tq.
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  #33  
Old 05-12-2014, 04:42 PM
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Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

Welcome to AutoAnything's Live Chat. One moment please while we connect you with one of our specialists.
[jon baker] I am wanting to buy a Corsa exhaust for my jeep. you web page says it si 2.5" cat back. but the corsa web page says 3.0" cat back.,
[Abraham U] Welcome to AutoAnything. My name is Abraham U.
[Abraham U] Hello Jon , sorry for the confusion . Are both the same part #?
[jon baker] yes
[jon baker] 2011-2014 Jeep Grand Cherokee Performance Exhaust Systems - Corsa 14457BLK - Corsa Performance Exhaust
[jon baker] Corsa Performance Exhaust - Search Products
[jon baker] Part #14457BLK
[Abraham U] The Corsa page will be correct. Looks like a data error on our end.
[Abraham U] Your exhaust dropships so coming direct from Corsa to you
[jon baker] oh i see. nice.
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  #34  
Old 05-12-2014, 04:52 PM
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Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

Quote:
Originally Posted by ClarksHawk View Post
$1500 +/- For sound only?? yeah not worth it IMHO. I wish I wasn't the guinea pig.. or the first person to do a dyno comparison on this exhaust. I NEVER would have bought this exhaust if i knew i'd only get 7 wheel hp..
Honestly bro, you probably would only see about the same with any other system out there. Just shows how good the stock setup is. But it is a shame to spend that much and get so little. Id be pissed too. The real restrictions are the stock manifolds and cats. If ya dump them for some thing better and throw a tune on it you will get big gains.
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Old 05-12-2014, 06:14 PM
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Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

this is the only one i had sent to me.. i have all 3 at home. now.. i need to figure out whats happening at 4700rpm
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  #36  
Old 05-12-2014, 06:40 PM
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Re: 2013 5.7L V8 GC TrailHawk and my Dyno run.

Quote:
Originally Posted by ClarksHawk View Post
this is the only one i had sent to me.. i have all 3 at home. now.. i need to figure out whats happening at 4700rpm
Wow that is strange, hopefully a tune will smooth it out.

14summithemi you still butt hurt?
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