Mine are looking pretty dodgy, so I might replace them with some aftermarket jobbies while I continue to save up for some new rims...

 

I believe it's 62mm or 2.5"

 

1) Take out your favorite ruler (in desired incremental value.)
2) Place one end of ruler on edge of center cap, making sure it's on the center line.
3) Read measurement from the other edge of the center cap.
4) Repeat for accuracy.
5) Crack a brew and enjoy the satisfaction of a job well done.

Sorry, I just couldn't resist. I've seen many such responses and just had to. Don't worry, I'm just busting your chops man. I'm sure I've been guilty of such rookie moves.

Mine were all jacked up too but once ALL the paint rubbed off, it's not too shabby all black. Will probably paint them though. Let us know what you end up getting.

 

I actually just moved and don't have a ruler in my apartment yet. As for which ones I'll get, none of the ones I was looking at are the right size. Any suggestions?

 

Fifth picture down:

http://www.rx7.com/store/rx7/fdexterior.html

 

No, they are plastic like the stock caps. The only difference is the logo.