I bought these wheels off a friend that bought them for a rx7. long story, if interested I can explain over the phone.... I was told they would fit without spacers at first when I bought them, but I tried one on the front of my Z and you will need a 10 mm spacer. The rear fits fine. I am not really fond of spacers so I am selling them now. Worst case if I do not sell them I will buy Eibach hub centric spacers with the longer studs. These wheels will fit a RX7 with no problems if you know anybody that owns one.