I have 32 front, 25 rear as does car_man_subaru and Shade. We're all running 19s and 20s though and
do not need any spacers! Also, the car is lowered on Eibachs and Konis (see sig) and I drive the car normally
without any rubbing. If you are going to do wheels, I suggest 19s and 20s because very few 18s and 19s look good on the car except for the factory wheels. Also, you'll probably need to drop it. If so, do it right! Get springs and adjustable shocks. It is worth the money and the car rides better than stock with this set up even with the larger wheels. Honestly, call Peter and tell him what you want. He'll tell you which wheels and tires will work with the car! His info is in Shade's posting below. I am not affiliated with his company at all!! I'm military, but he knows his $hit about our cars and all of us who have used him came out with the perfect look and no spacers required. He's done several of our cars. Call around if you want, but they will beat prices there!
Here's the link to Shade's car which is the one that inspired me to lower and go with larger wheels and tires:
https://www.crossfireforum.org/forum...=petrol+octane
My car is below so you can see the offsets. Hope this helps!
XSuspension011.jpg