1-888-FASTLAP (Marietta Motorsports). These guys are in the know about Michelin Pilots. I have only seen 180's but they would know whats up with any larger ones coming down the pike. They have a free racers catalog also. Great prices. I shop them first, then call around to try and beat their price... tough to do most times. My next set (about 1K more miles), will be Pilots.
Nailz