Originally posted by turbo-maxima
Wow that is expensive? Did you think about ceramic coating? Probally would of cost a 1/4 or 1/5 of that. Does the same thing.

Benefits
On-track testing has shown as much as a 35% reduction in under hood ambient temperature and more than 50% reduction in component skin temperature. HPC's HiPerCoat Extreme process achieves this by creating a thermal barrier which retains the heat within the exhaust system. In turbocharged applications this coating helps increase turbo boost and spool-up. Independent testing of a turbocharged Mazda engine has shown a 5% increase in horsepower when HiPerCoat Extreme was used on the exhaust manifold, turbo and downpipe.

Today's leading CART, NASCAR, IMSA, and F-1 teams use HPC's HiPerCoat Extreme process with winning success, where it easily withstands temperatures reaching 2,500° F. But race cars are not the only candidates for HiPerCoat Extreme. Sport compact cars, towing vehicles, motorhomes and buses also benefit from reduced under hood temperatures which help to prolong component life and promote passenger comfort.

The following graph shows the results of a test performed by Marsh Motorsports on a Mercruiser 900 (496 CID Chevrolet). The engine produced 913 hp and 860 ft/lbs torque at 6750 RPM.

HiPerCoat Extreme was used on cylinder #2 header tube only. The other 7 were left bare. Readings were taken with thermocouples attached to the header primary tubes 1" from the header flange.

HiPerCoat Extreme is available in the U.S. in the Oklahoma plant only. HiPerCoat Extreme is available in both the Queensland and Victoria plants in Australia as well as the New Zealand facility. Due to pigment stability above 2,000° F semi-gloss black and gray are the only colors available.

HEADER TEMPERATURE TESTING DATA

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Examine the following table and look at the amount of temperature drop that the coated header shows! Header wraps provide a similar drop in temperature but do not provide the internal corrosion resistance that our ceramic coatings provide. Exhaust gases are extremely corrosive and have a tendency to deteriorate headers from the inside out. By coating both internal as well as external surfaces, Performance Coatings, Inc. not only reduces temperatures but also maximizes corrosion resistance.

It has been determined that engine efficiency improves by 1% for every 10° degree drop in under-hood temperature.

If we were to use the above data, we could reasonably assume that we would obtain a 50 horsepower increase on a 500 horsepower engine.

Originally posted by aalzuhair
Yes it would cost less and would give you less benefits.

This is quoted from HiPerCoat Extreme site:

Originally posted by UsafaRice
Have you considered putting header/turbo/exhaust wrap on there as well? It couldn't cost too much and would definitely help with heat even more.

Then again, it wouldn't look as nice as those pretty black parts.

Originally posted by aalzuhair
I have a personal experience with those. Long time back (about 15 years) my brother had a Chevy Blazer with one massive engine (used for desert racing) anyway, we had those wraps on the headers and downwards (about 2-3 feet).

Anyway, apparently when my brother took his car for an oil change they dropped some oil on the wraps, which caused (during a desert trip) the whole front-end of the car to burn.

Az