| Joseph,
I have my interior and exterior done. They work great so far but I only have about 70 hours on them. There is one very huge possible draw back: If you go to the wrong place they will sand blast the heck out of your pipes and they won't fit anymore. I had my first set done at jet hot which is an auto outfit. One day I noticed the plastic covering on my gascolator inlet was melted; traced it down to a leaky transfer tube joint; bubble tested the entire system and found that none of the slip joints were any good. ....so I had to start over. This time I sent it to Olympic Coatings, the outfit down the street from Performance Engines, in Escondido CA. No problems.
Personally I think it's rough on the pipes to only put exterior coating on. That holds the heat in which means the pipes have to run hotter. Some people think it must be bad for your turbo to have interior coating. I guess I'll know in another few hundred hours.
I do have really good cooling for a number of reasons but I think the exhaust coating is a big part of it.
Colyn On Jan 10, 2012, at 4:39 PM, paul miller wrote: I like the coating I have (see pic, 5 year, 500+ hours). The original builder had it done. It is cool to touch, does not discolor beyond exhaust leaks which I can fix (and should). Overall, I think it is a good enhancement and the technology is now mature.
Paul Legacy On 2012-01-10, at 12:55 PM, Joseph Neustein wrote: Any thoughts on the benefits or drawbacks to ceramic exhaust coatings
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