My 06 36tk3 did not have them and I ordered from factory and installed myself. They look great from the outside and from the inside look OK most of the time but when it rains the drops collect on them and you do not see out. I have to clean mine with a window cleaner and use a brush to scrub them in order to get them clean.
Would I do it again, maybe not but I like the way they look and have had many positive comments about them.
BTW, I looked at the 09 models at the Tampa show and did not like the silkscreen trim job on the edge of the frameless windows and I certainly would not want it on the big back window because of the rain issue already mentioned.
All this is JMO.
Bob
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