The RaceStar wheels are cast and very heavy. Which sucks. The machining is also very poor in the lug nut area. If/when you buy them do yourself a HUGE favor and do not use their lug nuts and washers. But the McGard lug nuts and stainless washers. And get the small diameter washers. The "correct" ones RaceStar says to use catches a lip of the bore where the lug nut goes. It cups the washers and doesn't secure the wheel properly. The smaller O.D. washers work fine.
They are also not hub centric. So you have to use a hub centric ring. Even with the rings my car had bad shaking at highway speeds.
I agree and say save your pennies for a set of RT-S, Alumistars or the like. MUCH better quality and they are lighter.