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I had the same experience as Colyn when I had my
pipes coated on my ES. I sent my exhaust to Jet Hot (which is
primarily for cars) and when I got it back, some joints were a little loose
but others wouldn't fit at all. I don't know how they did it, but some of
the joints were visibly out of round. I had to take them to another shop
to try to get them bent back into shape, which resulted in slightly leaky
joints. Eventually, I had to have a new exhaust made. I took the new
pipes to Olympic Coatings in Escondido and had their gray high temp
coating put on. Several years and a few hundred hours later, it's still
going strong. I had both the inside and outside of the pipes done, however
it's important to remember NOT to coat the pipe running through the heat
muff. Doing so will greatly reduce the heat transfer.
Skip Slater
N540ES
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