I just ordered falken Azenis RT-615 these are replacing the RT-215. havent tested these tires out but there the closest to a race tire for the street. they look fucking sick. I got them for $150 a piece. expensive compared to the $110 RT-215. the RT-215 were ranked #1 for dry performance in comparo test in Eurotuner. with 2 330 ci's driven by Turner Motorsports owner and some other Turner guy. they said closest to an R compound more grip than G-Force just not as precise. excellent in the wet but not in standing water but the new ones improved wet/dry traction. Im so excited cant wait to reek some havok in these tires got my shitty snow tires on right now almost killed myself in these.
http://www.vulcantire.com/falken.htm