What size tires are you running and any change the RX8 TPMS modules work with the 3?I like the way they look and how the car handles with these rims. I pay $150 for the set, but they needed work. I cleaned up the curb rash (not too much) sanded and repainted the wheels. One of the rims was warped and would not balance, so I found a brand new rim on Craig's list for $75.
Make sure if you buy used the seller knows the rims and if there is a problem with a warped rim. The seller I bought my from was up front and told me he bought a car with the RX8 rims on it and took them off to install other rims. Never ran them. For the price I took a chance. I think I still did good, 5 rims, paint supplies and my time, still under $350. The 5th rim can be straighten if I need it.
Are you sure that the wheels have modules?I am not sure about the lower models but my 2015 SGT does have them.