After talking to air-cooled 911 owners and reading the forums, we came to the conclusion that a quality motor mount for everyday use was needed. The the stock mounts are ok but fail quickly and can sag a bit. There are plenty of race mounts out there that look beautiful but nearly everyone  hates them because the increased vibration. The vibration can be so bad, especially at idle (even with the "soft" urethane bushings) that many people spend good money on the fancy mounts only to have them taken out a week later and go back to stock. So we used our proven urethane motor mount bushings and incorporated them into an ultra strong but very-low vibration mount package. The PRG mount's vibration levels are the same as stock at idle, but offer very little movement during shifting or under full throttle. It's no secret, we use a very soft durometer bushing with as much surface area as possible to make this happen. Install of our mounts is exactly like the stock mounts but includes new, slightly longer bolts. Installation is the same as regular mounts and takes just a few minutes to do. Price is for a pair of mounts shipped in the 50 states, we can do international shipping, but you will need to email for a price that includes shipping. 
Note; We are a small company developing custom parts and building these by hand, it may take a few days to get your mounts out the door.