CTOESHO

I have a 05 on order with the new 5x114.3 bolt pattern. I plan on running 18” RO_JA's R2-5 Rays Engineering Wheels but I am torn between running an 8" or 9" wide wheel. The offset of both wheels would be +47. The stock wheel on the new STi’s are 17x8 with 225s. I was planning on running either a 235 or 245 tire on this wheel. Can someone shed some insight on what the best combination would be? Thank you.