Im new to the forum ( ive been lurking alot though ), im not sure where to ask this so ill just ask here.

I want to get halos for my headlights, but im not sure what size the lights are, there are several different sizes on ebay for them (ive seen 60mm - 70mm difference ). What size should i get?

also since im new ill post a picture of my rx8 ) im doing alot to it very soon!

i photoshopped what the lights are kind of going to look like

thanks!