Finally, A name brand Subaru wheel adapter that works well and is affordable! No sense in paying 450.00 for competitors adapters any longer. This set (4) of bolt pattern adapters will allow you to bolt STI fitment wheels (5x114) to your WRX (Legacy, Forester, BRZ or any 5x100 Subaru)! Unlike most bolt pattern adapters, these are available in 15mm AND 25mm.
The ISC Subaru wheel adapters fit all 5x100 Subarus. Precision-CNC-machined billet aluminum bolt pattern adapters, and twenty special low-profile lug nuts. The adapters are hub-centric for both the car and wheels. Offered in both a anodized ISC gold, or a stealth black finish. ISC Logo is engraved on spacer as well.
Adapter: CNC 6061-T6 light weight high grade aluminum
Included Hardware: M12*1.25, Grade 10.9
*** Please Note*** 15mm adapters are so thin, the factory studs will most likely stick out beyond the spacer. That means the 5x114 wheels you are bolting on MUST have pockets in back for the studs to poke into or modifications will need to be made to the studs. Make sure to check your wheels for clearance before you order these. Most STI wheels DO have pockets on the back side, so it is usually fine. You can also modify a wheel to have pockets, do some research on this and see if it right for you.