I guess you can say I'm in the same boat, but I don't really let it bother me anymore. I used to fix one thing and a few other things would break, but later I discovered, once I did a through maintenance, fluid flush, new belts, and a couple of little things it was fine. For some odd reason bolt-on aftermarkets don't work well on Lexus cars. found that out after spending 10k on my LS and couldn't wait to get rid of it.