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Old 11-08-2013, 12:58 PM   #29
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Originally Posted by GQ4Life View Post
Thats what I am looking at right now..
Just looking at Kooks 2" runners to 3" back to NPP mufflers..
If you wanna hear mine let me know. I have 1 7/8 ARH with the Stock NPP catback
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Old 11-08-2013, 01:04 PM   #30
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If you wanna hear mine let me know. I have 1 7/8 ARH with the Stock NPP catback
Let's hear it! Vids? Idle and with some gas, etc...
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Old 11-08-2013, 01:39 PM   #31
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Originally Posted by Frans96ss View Post
If you wanna hear mine let me know. I have 1 7/8 ARH with the Stock NPP catback
ARH were released already..
def would love to hear it!!!!

Have they released a 2" runners one?

EDITED**
Just saw vid of jamies car with the headers.. and saw dyno.. so awesome..
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Old 11-10-2013, 08:03 PM   #32
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I think borla has a video with their exhaust on the C7
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Old 11-11-2013, 02:18 PM   #33
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Magnaflow is releasing a full catback that will work with all the modes in the NPP, it is 3" as opposed to the factory 2.75 system.
Sounds much deeper, great sound with headers.
Straight pipes will sound like ass.
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Old 11-11-2013, 08:11 PM   #34
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Magnaflow is releasing a full catback that will work with all the modes in the NPP, it is 3" as opposed to the factory 2.75 system.
Sounds much deeper, great sound with headers.
Straight pipes will sound like ass.
Doubtful add any power. Only 1/4" wider pipe. & the valves already straight pipes.
Think just make it louder. Real loud with headers lol..
cant wait for sound clips

Be cool 2" runners to 3.25" pipes alk the way back.. for people planning big power
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Old 11-15-2013, 09:59 AM   #35
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I think I might go with the Borla ATAK
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Old 11-15-2013, 10:05 AM   #36
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Originally Posted by GQ4Life View Post
Doubtful add any power. Only 1/4" wider pipe. & the valves already straight pipes.
Think just make it louder. Real loud with headers lol..
cant wait for sound clips

Be cool 2" runners to 3.25" pipes alk the way back.. for people planning big power
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I think I might go with the Borla ATAK
If we're updrading a non-NPP C7 with a freer flowing exhaust set (minimum axle-back)... and as along as the upgraded set meets or exceeds GM's NPP specs, then technically there should be at least a 5hp + 5tq increase.
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Old 11-15-2013, 10:35 AM   #37
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If we're updrading a non-NPP C7 with a freer flowing exhaust set (minimum axle-back)... and as along as the upgraded set meets or exceeds GM's NPP specs, then technically there should be at least a 5hp + 5tq increase.
I should dyno with the valves open & close see if any difference
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Old 12-16-2013, 02:49 PM   #38
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Interested in seeing other exhaust systems as they come out. Be sure to check ours out as well, it will be ready for the public at the beginning of the year!

Info @ www.legendaryperformanceracing.com
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Old 06-01-2014, 08:28 AM   #39
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Just purchased the c7 stock exhaust no NPP.What is the best exhaust system today,from the exhaust manifold back?
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Old 06-01-2014, 07:26 PM   #40
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Just purchased the c7 stock exhaust no NPP.What is the best exhaust system today,from the exhaust manifold back?
American Racing Headers
dont know cat back
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