I could have sworn a found post the other day showing the three OEM rims that Mazda had for the RX-8 worldwide - 17", 18", and 19" - that now after numerous tries I can't seem to find. The picture showed the 17" labeled as a "Design 4" type. I'm interested because where I am the 17" wheel, 7.5jx17 with ET50 are homologated as winter rims for M+S tires. I wanted to find out their specific part number designation so that I can be on the look out if someone sells a set. I've only seen an aftermarket rim from MOMO that is 7.5jx17 with ET50.

 

AUTO/ LOW POWER 16"
https://www.hubcaphaven.com/p/1839/a...YaAkStEALw_wcB



S1 STOCK 18"
https://www.hubcaphaven.com/p/1386/a...8aAkkYEALw_wcB


S2 STOCK 18"
https://www.hubcaphaven.com/p/2745/a...IaAkkSEALw_wcB


R3 19"
https://www.detroitwheelandtire.com/...4aAvuOEALw_wcB

 

Note that RX8s that came with the 16" (not 17") wheels (the first ones above) had smaller brakes than the rest of the model line, so the rims do not fit on a regular RX8.

You're better off finding aftermarket 17" wheels.