I do have two sets of rims. My stock Z wheels have Bridgestone Grids on them, high performance all seasons to handle winter driving duties.
PSN ID: Phatchance249
Ordered the V12's, should be on the car next monday. Local tire shop said they put them on M3's, Porsche's and high power STi's all with great customer responses. They also matched the price from Tire rack.
PSN ID: Phatchance249