View Poll Results: Which Header do you prefer?
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TRi Y and Stepped Headers
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From: Roseville, CA
TRi Y and Stepped Headers I've heard really good things about the 2 designs. Although I've also been told the Tri-Y's are better off in a truck. The 2 designs are very costly and I'm sure that's the reason more people aren't running them. On this build, the Tri-Y's made huge numbers with just the headers and a CAI. They don't seem to carry the power too far but I know I could fix that with a few other bolt on's. See below for the build I'm talking about.
https://ls1tech.com/forums/generatio...eaders-10.html
So what's your opinion? Which one is better?
https://ls1tech.com/forums/generatio...eaders-10.html
So what's your opinion? Which one is better?
Last edited by scotty2000ss; Dec 18, 2015 at 07:41 AM.
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From: Roseville, CA
I guess it's a matter of what's more important. More average torque or peak HP and the ability to carry out the power longer.
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From: Roseville, CA
I know ARH custom makes 2" headers for the C5 but I'm not sure how well they fit. I think as of now I'm leaning towards 1 3/4- 1 7/8 Kooks.
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Thread Starter
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From: Roseville, CA
Thread Starter
11 Second Club
iTrader: (2)
Joined: Jun 2014
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From: Roseville, CA
Spoke to Steve @ ARH the other day about the stepped header. He mentioned that they don't stock them but can make whatever the customer needs. He also mentioned that the only ones he typically sells go on the COPO race cars.ARH charges an extra $400 for the custom header.
Kooks seems more popular with the stepped header design. I'm wondering if more people are running kooks? I saw a nice thread on camaro5 that Maryland speed put together. They were showing great gains on a LS3 with a 1 3/4 - 1 7/8 kooks stepped header.
Kooks seems more popular with the stepped header design. I'm wondering if more people are running kooks? I saw a nice thread on camaro5 that Maryland speed put together. They were showing great gains on a LS3 with a 1 3/4 - 1 7/8 kooks stepped header.
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From: Wilmington, De
The concept behind Tri-Ys is to tie exhaust ports together so one helps pull the gasses out of the other. This is dependent upon the firing order of the engine. You also need to take primary tube lengths into consideration, because there is a point of diminishing returns. So, simply lopping off the 4-1 merge collector and welding on something like that isn't going to effectively give you the benefits of a proper Tri-Y design.
Personally, I wish GM offered the Z/28 Tri-Y manifolds at a much more affordable price than the $700+ that they want.