Try Bridgestone RE960's. They are a new tire from Bridgestone and come in Porsche 911 Carrera S/19 inch size. I had the Michelins and after 10k miles they rode like a buckboard/were noisy. The Bridgestone's are much quiter and have double the treadwear rating (i.e., longer life). And they are cheaper than the Michelins.