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Old Jan 18, 2012 | 11:33 AM
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Default Headers, coat/no coat

The forum helped me alot in making the decsion to put headers on and which make to install.Now the question is to get coating or not on kooks LT headers.Thanks for any input
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Old Jan 18, 2012 | 01:19 PM
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Stainless headers will change with repeated heat cycles to a mottled dark gray patina. Is that of concern?

The ceramic metallic coating appearance will stay that way forever unless the header temperatures for some reason exceed the maximum heat limits of the product.

The ceramic metallic coating will reduce engine bay temperatures considerably. That's especially important in the confines of a C5/Z06 car. That helps prevents degradation of the close proximity hoses and wiring.
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Old Jan 18, 2012 | 01:34 PM
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I have ceramic coated headers, inside and out, been on the car for 4 years, still look New!

Spend a little extra for the ceramic, you will not regret it!
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Old Jan 18, 2012 | 01:42 PM
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You can wrap them also, but if they are steel the wrap can trap moisture and cause rust.

(mine are wrapped)
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Old Jan 18, 2012 | 02:13 PM
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Check with the header manufacturer if you decide to wrap them. Many companies expressly deny warranty if that's done.
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Old Jan 18, 2012 | 09:42 PM
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Originally Posted by Blitzkrieg
I have ceramic coated headers, inside and out, been on the car for 4 years, still look New!

Spend a little extra for the ceramic, you will not regret it!
I had the AR headers ceramic coated on my mustang (primarily a track car) and they look as good as the day I put them on. I got the same ceramic coating for the AR headers that are going on my '04 Z06 this spring. Definitely worth it even if not offered by the manufacturer. Keeps the under hood temps down and the headers looking new.
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Old Jan 18, 2012 | 11:04 PM
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Can I suggest another header manufacturer than Kooks?
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Old Jan 19, 2012 | 10:12 AM
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Sure,I'm still in the research phase
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Old Jan 19, 2012 | 11:12 AM
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I have never made a connection from the weekend show cars to the track cars on coatings??? (I don't see them on the track)

If it was so effective wouldn't every car coming out of the "big C5/6 LS" shops have the coating?

If there is a tuner/shop that has done research on the coating, please chime in.

Thanks very much.
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Old Jan 19, 2012 | 02:20 PM
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I've coated them on my track car. In fact I had the whole system coated all the way to the mufflers. The reduction in heat is well worth it.
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Old Jan 19, 2012 | 04:48 PM
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I didn't coat my LG's (not that I was deciding one way or the other) but I will tell you if you "don't" coat them make sure after you install them (AND BEFORE THE FIRST CRANK) make sure you wipe them down (as best you can) with a rag (I used a slightly soaked alcohol rag and of course let the alcohol evaporate not that it was that soaked). This will get all the "stuff" off of them (i.e. finger prints and any other "stuff" that touched them from being fabricated and handling) before you hung them on the car. If not the first time you crank the car and anytime after you will see all those finger prints and other "stuff" burnt onto the header. Once that happens it's there forever (unless you coat them after the fact I guess).
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Old Jan 19, 2012 | 09:36 PM
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I had a small block in a 240z. You could feel the difference when you opened the engine compartment after running for about thirty minutes. On long runs it didn't really matter since the whole car soaked up the engine heat anyway.

On my second gen camaro you could touch the headers after shutting the car down in about 20-30 minutes, for uncoated headers it took about an hour.
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Old Jan 20, 2012 | 01:55 AM
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Definitely coat them
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Old Jan 20, 2012 | 11:23 AM
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Originally Posted by hotwheels57
Stainless headers will change with repeated heat cycles to a mottled dark gray patina. Is that of concern?

The ceramic metallic coating appearance will stay that way forever unless the header temperatures for some reason exceed the maximum heat limits of the product.

The ceramic metallic coating will reduce engine bay temperatures considerably. That's especially important in the confines of a C5/Z06 car. That helps prevents degradation of the close proximity hoses and wiring.
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Old Jan 20, 2012 | 01:10 PM
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I would definitely use coated headers. Our cars have enough trouble with engine compartment heat. Have them coated inside and out. By coating them you can also go to steel instead of SS. Mine have been on for 7 years and still look new. Have a friend who has had coated steel headers on his Chevelle for 14 years now and they still look new. Jet Hot who does coatings also sells headers. When I bought mine they were $650 shipped, coated inside and out.
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Old Jan 20, 2012 | 02:15 PM
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I've used JET HOT several times on project cars because they have a plant in metro Phoenix. In fact, JET HOT has three plants across the USA (AZ, OK, NC). Their turn around time is 3-5 days not including shipping to/from. Their pricing depends on size, product options, finished inside/outside or outside only, etc.

Here's their warranty...

http://www.jet-hot.com/

AN UNMATCHED WARRANTY

The Jet-Hot exhaust coating warranty is the best in the industry. Lifetime – no questions asked. If you think your Jet-Hot exhaust coating isn’t living up to its billing, we’ll coat your part again on our dime. If it fails in the first year, we’ll re-coat your part and cover the shipping both ways. If the coating fails after a year, ship us the part, and we’ll coat it and ship it back on our dime. Yep, we stand behind our work.
HPC and CERMACHROME also used to be very popular ceramic metallic vendors, but I haven't heard much about them in the last few years.

Last edited by hotwheels57; Jan 20, 2012 at 02:17 PM.
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Old Jan 20, 2012 | 02:22 PM
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I've never heard ARH, Kooks or LG suggest coating headers.........

nor have I heard a shop suggest doing it

.02
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