I've spoken with Pedro about mounts for my '02 S this last weekend at the WCBF in Lake Tahoe, and will be ordering one myself. According to him, the durometer rating of the elastomer he uses is higher than the stock mount. This will make it more durable and will transmit more vibration. You will feel this "in your butt", as Pedro says. Also, shifting will be more positive with the reduced engine movement. Here's a link for the change-out with photos of the process:
http://www.ppbb.com/boards/ppbbphp/showflat.php?Cat=&Board=ARCHIVES&Number=1106222&Forum=ARCHIVES&Words=motor%20mount&Match=Entire%20Phrase&Searchpage=1&Limit=25&Old=1year&Main=1106222&Search=true#Post1106222
Good luck with the project!
Evilmorg