on the 05 sti whats the hub bore size?
i think its 56.1 but im not 100% sure.

anyone also know the bore size on the advan RG2 18x9 wheel as well?
=============
found the answer.

the subie is 56.1

the advan RG2 are all 73mm bore as long as they are 5x114.3 lug pattern.
per phillip at mackin industry
=============