How Do You Pick Headers?

[TobysZL1]

Originally Posted by jayno20

I got stainless power and my welds were just as good as any of the kooks or stainless works headers I've seen....

+1...
Mine too, welds a d perfect, quality superior.
Ceramic coating pure waste of money. But hey people love to waste money.

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[ZL W0N]

I'm still trying to figure out why getting headers coated or wrapped is a pure waste of money.

[TobysZL1]

Originally Posted by ZL W0N

I'm still trying to figure out why getting headers coated or wrapped is a pure waste of money.

Cause it does nothing. Adds no additional power. Kind of falls in line with the whole ported throttle body crap. Another pure waste of money.
Testing has been done with and without coating. No difference.

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[jayno20]

Originally Posted by TobysZL1

Cause it does nothing. Adds no additional power. Kind of falls in line with the whole ported throttle body crap. Another pure waste of money.
Testing has been done with and without coating. No difference.

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It's not really for adding power as much as keeping heat out of the engine bay.

[TobysZL1]

Originally Posted by jayno20

It's not really for adding power as much as keeping heat out of the engine bay.

Dude don't buy into that crap please. It may keep temps down a Tad but come on you really think it's that significant. Your kidding yourself if so.

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[ZL W0N]

It's not suppose to add horsepower. It's sole purpose is to keep the heat in the headers and to create consistant power, instead of releasing it into your engine bay and creating heat soak.

[TobysZL1]

I know what it's suppose to do! I just don't buy into that crap. Otherwise everyone would be getting ceramic coating if it was that necessary

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[ZO6 Bryan]

The material used for the welds is important too. You can have stainless tubes and cheap material used for the welds and they will rust at the welds.

And my opinion is that ceramic coating is good for mild steel headers. But it is a waste on stainless steel T304 headers. The stainless steel keeps the heat inside the header much better than mild steel tubing. This helps two-fold. The stainless keeps the heat in which helps maintain velocity inside the tube as well as keeping under hood temps down.

[TobysZL1]

Originally Posted by ZO6 Bryan

The material used for the welds is important too. You can have stainless tubes and cheap material used for the welds and they will rust at the welds.

And my opinion is that ceramic coating is good for mild steel headers. But it is a waste on stainless steel T304 headers. The stainless steel keeps the heat inside the header much better than mild steel tubing. This helps two-fold. The stainless keeps the heat in which helps maintain velocity inside the tube as well as keeping under hood temps down.

This is exactly what I was told. Just couldn't remember the actual contents of what I was told about the ceramic coating. Thank you!
Like I said on quality headers that are 304 stainless it's a waste of money.

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[ZO6 Bryan]

Excerpt from http://www.burnsstainless.com/stainlesssteel.aspx

You may have heard Smokey Yunick talk about maintaining high exhaust velocity and increase scavenging by covering headers with a thermal wrap. In addition, there are companies that coat headers with a thermal barrier, typically some type of ceramic formula, in order to keep the heat inside the exhaust system. Stainless steel performs this function without the need for add-ons because it has a much lower coefficient of thermal conductivity, thereby keeping more heat inside and transmitting it to the header outlet. Radiated heat is perhaps the most important reason to wrap or ceramic coat the headers to protect the car and the driver from excessive, fatiguing high temperatures.

Typical 1010 carbon (mild) steel conducts 219% more heat per foot than do the types of stainless steel we use in header fabrication. By contrast, quite a bit more heat stays inside the stainless header tubes and does not get passed into the surrounding air. By not allowing the contraction of the cooling gases as they flow down the tubes, more exhaust velocity is retained which promotes better scavenging at the collector. This retention of velocity increases the overall header efficiency.

[hognutz]

Originally Posted by ZL W0N

Have you seen the guy that bought stainless power headers and had terrible welds done? It looked like a 3 year old did them. The materials might be the same, but the building quality is not. I talked to multiple shops about ceramic coated headers and they all recommended doing it, especially if I plan to add more parts or if I wanted to take it on the track. If I was keeping it in the garage 11 out of 12 months, then it wouldn't be needed, but I bought a ZL1 to drive it. For $150, it was a no brainer, as I plan on doing a lot more next year and taking it to the track.

I ran stainless power and they were fine. Ran them for 2 years and sold them to someone on the forums here and I am sure they are doing fine.

there is nothing wrong with them.

If you get a set with bad welds you call the company and return them period.

[Fraxum]

Originally Posted by leggettjd

Can headers be run on stock cats and will they be able to pass emissions test? Also, how much RWHP will headers add. I know the more mods you add the less HP gained, but just trying to get a ball park range and see if the power is worth the price of headers and install.

Nope, LTs cannot be used with stock cats. Replacing or removing the stock cats is a major portion of the HP you pick up when using LTs. Once you add LTs and possible hi-flow cats you will get CELs. If you want to get rid of the CELs and pick up a little more power you will need a tune.

Once you get a tune and have added cats, you might pass a visual inspection since there are no CELs but if the inspector wants to fail you they can since if they look it is easy to see you modified the cat placement. So then if your state allows private inspections and you have no CELs a "friendly" inspector can pass you. If you are in a state that will sniff a newer car and many do not, then most likely you will fail even if you have no CELs.

[Unreal]

Ran just about every brand. ARH only from now on. They are a step above the rest.

And coating does have some very real advantages. If you are going for added power, no, but it can help with heat, save starters, keep them looking good, and in general is cheap for what is does.

[TobysZL1]

^^ how's that kool-aid?

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