Gtkyl, I've had no problems (knock on wood!).
I did have the center brake light seal fall down, I just had them reset it when they did the tint. That was awhile back, so no prob after that.
The clunk, I've only had on really sharp bumps like once in a blue moon. Maybe I just don't notice it cuz I'm listening to the engine scream at 6000rpms.
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I have added alittle bit of water to the coolant tank every once in a while, and added alittle oil once. Nothing major.
AC runs really good.
But, according to the computer, my mileage sucks. Just around 17 mpg which might be the result of my driving style
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Hope you don't have anymore problems.
cya