Tried searching, but did not turn up much. Has anyone ceramically coated the Gen III headers? There is obvious heat dispersion benefits, but does the decrease in dissipated temps yield any performance gains as well?

Also, is it worth the money to coat the y-pipe? I'm leaning towards no, but input on this would help as well.

 

Performance gains yes.. Last longer is a yes also. after coating your headers and y-pipe get a tune and you will be able to see the performace gains.

let see some pic before and after the coating.

Good luck.

 

How hard did you try searching? http://forums.maxima.org/members-rid...pipe-prep.html

Loads of pictures in there.

 

Thanks man. Is it worth having the y-pipe coated as well? I'm thinking of only doing the headers. What type of gains are we talking about, minimal I assume?

 

Probably not worth coating the y-pipe

 

Definitely worth at least coating the headers. I had a ceramic coated DC Sport header on my Accord and the reduction in underhood temperatures was very noticable. With the stock cast iron exhaust manifold, when I turned off the car in temperatures in the mid 80s and higher, the cooling fan would run a good 5-10 minutes after I turned off the car. With DC Sport header, unless I was stuck in heavy, heavy rush hour traffic and it was around 100 degrees, the fan would come on for maybe a minute at the most. Rest of the time not at all.

With the car running, I could put my hand in between the tubes and keep it there as long as I wanted.

Performance gains? Not sure because the header came ceramic coated. I would imagine the drastic reduction in underhood tempertures helps, along with keeping the heat inside the tubes supposedly improves exhaust velocity.

 

According to a bunch of articles I have read, ceramic coatings (on the inside) of the header help accelerate the exhaust gas which will show a performance gain. But coating the outside will help, just not as much as doing both the inside and the outside.

 

Some useful information, thanks guys.

Looking on the inside of the Cattman headers, I've noticed that where there has been welds, inside of the pipe remains unsmooth. That is, you can see original piping. I'm thinking that this HAS to create some form of air flow restriction. I'll try to get pictures up to better explain what I mean, as I realize this is a sketchy explanation.

 

If you have the time and the patience you can dremmel out the imperfections, but I don't think you are going to notice any huge gains. And you take the chance of a pinhole leak if you take too much off

 

+1 to ceramic coating. Some potential power is being lost compared to OEM-style headers due to the heat loss. But I'd go with a TRUE ceramic coating, like Swain Tech white lightning. Most other companies just use regular high-temp paint with some ceramic particles suspended in it.


http://www.swaintech.com/store.asp?pid=10969

 

Your O2 sensors and their ports create more turbulence than a weld bump or void.

IMO, not worth the effort.

+1

 

Thanks for the link man. I'm currently asking local performance shops. I want this done right.

Everyone else, thank you for your information as well.

 

why not wrap them?

 

Wrapping headers voids most companies warranties, I would be seriously suprised if Brian would honor the header warranty after doing that. Coating them is much more efficient, and provides a layer of corrosion protection.

 

Salt

 

I was gonna ask this same question.

But this makes sense. What about for someone who lives in south florida?

 

+1 on salt

 

Yeah, wrapping might be an option, as I live in AZ, however, I'd have to double check with Brian on the liklihood of it voiding the warranty.