Yes, 4x100 and you cannot fit the 9" wheels unless you change the rear camber, which I believe anybody wanting the best handling at higher speeds should do, and you have to work on the fenders to move them out as far as you can to clear the tires.
I spent a great deal of time to make these wheels fit and fit the biggest brakes I could on the car but am willing to coach anyone wanted to do this mod of course and save a ton of time compared to what I invested into it.