cop wheels ..what trim ring will fit ?

Same as 15x7 Rallye. VERY expensive when found.

The factory ring from a 15x6.5 inch wheel will fit, but it leaves a gap at the center.

Beyond that is aftermarket territory that I have no experience with.

Related trivia though.... the 15x8 Super Coupe wheels also used 15x7 trim rings, leaving a gap at the center.....