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How much HP should I expect to gain?

Old 09-25-2018, 08:41 AM
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TennesseeJed
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Default How much HP should I expect to gain?

I have a 2007 c6 (LS2) that is stock with the exception of AR headers (1 and 7/8 to the collector 3 inch all the way out with x pipe and free flow cats). How much gain in HP should I expect (over stock) from these headers and a proper tune?

Thanks, TJ

Last edited by TennesseeJed; 09-25-2018 at 08:43 AM.
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Old 09-25-2018, 11:15 AM
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BadAV
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35-40 would be my best guess.
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Old 09-25-2018, 12:45 PM
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TennesseeJed
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Originally Posted by BadAV View Post
35-40 would be my best guess.
Thank you for responding to my post.
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Old 09-26-2018, 09:31 PM
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damascus1986
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agreed with that hp gain, headers and tune is a great first mod!
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Old 09-27-2018, 03:21 AM
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I made on LS3 (CAI & Cats delete) 423whp Dynojet STD
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Old 09-30-2018, 04:32 PM
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449er
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One of the best starting mods for the LS2/3 engines is a set of headers & a tune
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Old 09-30-2018, 06:34 PM
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Put the C6 on the dyno last week. I was a bit surprised by the graphs (pre and post tune), but I'm very happy with the way the car runs. Just thought it might have a bit more HP that this.
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Old 09-30-2018, 07:55 PM
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Originally Posted by OaklandRaider76 View Post

Put the C6 on the dyno last week. I was a bit surprised by the graphs (pre and post tune), but I'm very happy with the way the car runs. Just thought it might have a bit more HP that this.
Your numbers will depend on what dyno machine that you used,,,a Mustang dyno will typically show less hp/tq than a Dynojet machine
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Old 09-30-2018, 08:39 PM
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Originally Posted by 449er View Post
Your numbers will depend on what dyno machine that you used,,,a Mustang dyno will typically show less hp/tq than a Dynojet machine
Didn't realize that different dynos give different readings depending on the car. Can you elaborate on why this is? Seems like HP is HP independent of vehicle, but I'm no expert.
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Old 10-01-2018, 04:28 PM
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Originally Posted by OaklandRaider76 View Post
Didn't realize that different dynos give different readings depending on the car. Can you elaborate on why this is? Seems like HP is HP independent of vehicle, but I'm no expert.
Its not relative to the car but to the type of dyno!
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