Thanks for the post! The 18x10" ET25 is too aggressive for the rear, and would likely require pulled fenders and very narrow tires in order to not rub. However, we produce an 18x10" ET33 that can work (except on LCI 4 sedan/wagon) in the rear with 265/35-18 as a direct fit, or 275/35-18 with rolled fenders.
For 17s we recommend the 17x9" ET30 with 245/40 or 255/40-17 tires. A 45 or 50 sidewall would make the tire quite tall, but it could likely be done.
Here are some of our favs:
17x9" ET30 with 255/40-17 tires:
These look great! Thanks for sharing your pics and feel free to post more.
A great question, but as mentioned above the 18x10" ET25 is unfortunately too aggressive, and the 18x9.5" ET35 with 275/35-18 and rolled fenders is the most aggressive fitment we recommend, aside from the 18x10" ET33 mentioned above. (LCI sedans and wagons should use 18x9.5" ET35 with 255/35-18 for a direct fit, and can fit 265/35-18 with rolled fenders).