Thanks again for the feedback Deckd, I ordered the ET35 5-arm 9x20 titanium rotor B8 RS4-style wheels today as they worked out cheaper than the ET37 WSP Italy version of the same wheels.

I also ordered Hankook Ventus S1 255 30 20 tires after reading that another forum member had these tires fitted with the ET35 wheels above and lowered on H&R sport/super sport springs. Looking forward to rolling on 20s!