What kind of Yoko's do you have now?
I dont no your budget but I'd stick with Yokohama or Kumho if you want performance at a great price.
Yokohama AVS db S2 are sexy... but are around $90 a peice on TireRack
Kumho
ECSTA KH11 Gives you the same performance if not better for $51 (except they wont even touch snow...but you dont need that
)
I enjoy my Yokohama Avid Touring tires i got on Tires.com tho, they were $55 a peice with free shipping, and there a better all around tire, and I think they have better dry traction..(but with Duratech Powah you always break them loose
)
DO NOT buy Michelin Pilots.....they SUCK HAIRY APPLES!!! My friend put them on his GTP, the tread lasts for s***...and we nudged a curb going 25 and it blew the tire out in an instant, they hold pebbles, suck on damp roads, suck in snow....they just...suck, specially at $180 a peice