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Best C7 headers for component clearance and road course use?

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Old 06-22-2018, 02:07 PM
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RapidC84B
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Originally Posted by Dcasole
now that one I would have argued ... the O2 is definitely part of the emissions/engine control function

Dave
No it's only covered 3/36. My car is a 2014 with 52K miles. My service writer is a straight shooter.
Old 06-22-2018, 02:27 PM
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Originally Posted by Tool Hoarder

No it's only covered 3/36. My car is a 2014 with 52K miles. My service writer is a straight shooter.
Old 04-05-2019, 12:42 PM
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Pacembellum how do you like them now?
Old 04-06-2019, 08:35 AM
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Originally Posted by Tool Hoarder

No it's only covered 3/36. My car is a 2014 with 52K miles. My service writer is a straight shooter.
So I just looked up the GM emissions warranty and on my 2015 the O2 sensors are covered under the emissions systems warranty which is way longer ..... I would have your advisor look it up.....I thought that was odd that you said it was not covered ..

Dave
Old 05-07-2019, 09:38 PM
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Mikec7z
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there was another thread where we all went round and round, and if im not mistaken, the z06 header IS CAST STAINLESS, just wanted to throw that out for people who think these are an upgrade from the stock manifolds due to the material they are made from.

Do these flow more air? Probably.

But im not sure these save a ton of weight over the z06 headers, the base LT1 headers are the non stainless headers that weigh a ton, that they compare to in the article.
Old 05-07-2019, 10:04 PM
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Mike the cast stainless on the z06 are the heaviest. The Hooker shorty's save 22lbs over the factory z06 manifolds.
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Old 05-07-2019, 10:06 PM
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could be true then, i have not weighed them. I am glad you are getting them so you can let us know the results.

I forget though, aren't you still on a stock tune, or are you about to go over to the dark side?

Also, do you have the norcal pipes? without those i would not be throwing money at these, unless it is only the weight savings you are after.

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Old 05-08-2019, 10:54 AM
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Originally Posted by badhabit_wb
Mike the cast stainless on the z06 are the heaviest. The Hooker shorty's save 22lbs over the factory z06 manifolds.
Hookers for the C7? Do they come with new cat-pipes to mate to the OEM X-pipe?

For now I've decided to just keep the OEM manifolds.
Old 05-08-2019, 10:54 AM
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Neato...

https://www.holley.com/products/exha.../70301306-RHKR
Old 05-08-2019, 02:42 PM
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They replace the stock manifolds. I ordered a set that's supposed to be here Friday. Now I have to decide whether or not to coat them and if so what to use.
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Old 05-08-2019, 02:45 PM
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Originally Posted by badhabit_wb
They replace the stock manifolds. I ordered a set that's supposed to be here Friday. Now I have to decide whether or not to coat them and if so what to use.
Yes coat them... any coating is better than none. I had some BBK shorties on my C5 road race car that came ceramic coated shiney chrome looking stuff. Held up fine. You can get super fancy and use swain-tech white stuff, but any decent coating will work. I'd avoid black... every time you nick it changing plugs you'll see metal.
Old 05-08-2019, 02:46 PM
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Originally Posted by Tool Hoarder
Yes coat them... any coating is better than none. I had some BBK shorties on my C5 road race car that came ceramic coated shiney chrome looking stuff. Held up fine. You can get super fancy and use swain-tech white stuff, but any decent coating will work. I'd avoid black... every time you nick it changing plugs you'll see metal.
What holds up best?
Old 05-08-2019, 02:48 PM
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Originally Posted by badhabit_wb
What holds up best?
I don't know these days... it's all in the prep. I had some headers don't by a local place called Thermal Tech Coatings many years ago with their "race black 2000" coating. After one hard HPDE weekend there were pinholes all throughout the coating. The generic shiny stuff that came on my BBK shorties held up to 3 seasons as a full ST2 race car before I sold the car. Honestly, I'd probably just get Jet Hot chrome shiney stuff because bling blng But I'm not up to speed on what the absolute best is these days.
Old 05-08-2019, 02:50 PM
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Thanks. I may hold off for a bit my car went nuts this morning and started throwing codes.



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