justin_o_guy wrote on 12/31/69 at 16:00:05:Is this strictly a cosmetic thing or is there any performance gain? ( I wonder if anyone has a clue what I am into?
Take a look at the sites listed above.
From the Performance Coatings website:
Quote:The most advanced exhaust system coating available. It is a very durable ceramic reinforced coating available in a variety of colors. When properly applied it becomes the most effective thermal barrier coating available, increasing performance, while extending component life & has been tested to over 2000 degrees F without lifting, cracking or flaking.
Unlike header wraps, it does not hold potentially damaging heat & moisture around the part. Rather, the surface temperatures are actually reduced, extending the life of the part. When cured, a very effective corrosion inhibiting film is formed that protects the part against oxidation and imparts excellent chemical resistance that further extends part life and enhances appearance.
From the ThermalTech site:
Quote:Depending on the coating, part life increases from two (2) to ten (10) times the normal part life can be obtained. Coatings such as "THERMAL BARRIER COAT" (exhaust header coating) can provide virtual lifetime protection against rust when applied to a new part. The dry film lubricants may burnish until they are no longer visible, however the active materials are bonded into the pores of the part and continue to provide protection.
Quote:Parts will run cooler when coated with a thermal barrier (ceramic coating for exhaust systems), allowing engine oil and water temperatures to show a reduction. The radiated heat on headers will be substantially reduced leading to lower under hood temperatures and less heat absorption by nearby parts and surfaces. This is also a benefit for motorcycle exhaust coating to reduce the temperature rising towards the rider.