I'm confused regarding the fitment of the Prodrive PFF7's. Some people say they fit, but they are not listed here. I guess I'm wondering if the 18 x 8.0 PFF7's will fit an STi. A friend of mine is running Rota SDR's (17 x 7.5) for his race rubber and they fit his STi no problem (and since the SDR's are PFF7 knockoffs, they should be the same). Can someone please help me out? I like the look of the PFF7's (since they look a lot like the GC-07's) and although the GC's are what I want, the price of the PFF7's is better.