Header result.
Thread Starter
Racer
Joined: Jul 2014
Posts: 485
Likes: 99
From: Long Island, NY
Header result.
Finally, had my car Dyno tuned. 420 hp 398 lbs torque. Very happy with the results. Car pulls like freight train! Sounds amazing!
2011 Grand Sport 6M. ARH 1-7/8 Cerakoted headers, Z06 Ceramic coated catted x-pipe and connector pipes going into 2.5 " Borla Atak exhaust.
2011 Grand Sport 6M. ARH 1-7/8 Cerakoted headers, Z06 Ceramic coated catted x-pipe and connector pipes going into 2.5 " Borla Atak exhaust.
Racer
Joined: May 2016
Posts: 360
Likes: 153
From: Clinton, Illinois
The torque does seem a bit low. I have a 2010 GS A6. Mine has Kooks 1 7/8 with Kooks high flow cats and X pipe, and the NPP exhaust pipes. I also have installed, since the tune, a Haltec CAI. Mine did 420/446 on 93 octane. When I fill the tank with Krypton I get numbers in the 1000"s.
Mike F.
Mike F.
Pro
Joined: Oct 2009
Posts: 680
Likes: 24
From: Durham North Carolina
Some tunes may be more aggressive than others. Mine did 408/412 and I have 1 3/4 lg super pros with a borla stinger exhaust. At the time I had a Halltech set up. Still a solid performer you got there boss. Enjoy the new round power, it is amazing
Thread Starter
Racer
Joined: Jul 2014
Posts: 485
Likes: 99
From: Long Island, NY
Thanks! I'm very happy with the numbers. The performance more than meets my expectations!
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The LS3 cars do respond well to headers & a tune
Burning Brakes
Joined: Mar 2018
Posts: 1,172
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Please elaborate on the "round power." I curious on how significant the seat of the pants improvement is.
Racer
Joined: May 2016
Posts: 360
Likes: 153
From: Clinton, Illinois
I'm not sure why you say that. The dyno numbers do not lie. I have Kooks 1 7/8 with the Kooks X pipe and hi flow cats, finished by the stock NPP exhaust. I have a mild to wild switch and I love the sound or lack there of, depending on how I feel at any given moment. I gained significant HP and torque. It's way faster! The tune removed the torque management so it shifts like race car and still drives normal for normal driving. I have never been a purist...modifying my first and every Corvette there after and I have no regrets. These LS engines can make way more power with very few modifications and for the most part unless you go to the 800hp+ they will still drive tame when you need them to...and instant power too.
Thread Starter
Racer
Joined: Jul 2014
Posts: 485
Likes: 99
From: Long Island, NY
Racer
Joined: May 2016
Posts: 360
Likes: 153
From: Clinton, Illinois