Ordered from Nigel at Blueflame in March 06 to replace the Borla exhaust system. Installed on March 23, 2006. There are additional and helpful how-to's here:
http://public.fotki.com/ttschwing/exhaust_installs/
http://forums.audiworld.com/tt/msgs/1281985.phtml
This exhaust system is manufactured by Blueflame, and used to be sold as the Forge exahust system (now unavailable). Blueflame now sells these under their own name, mainly through their eBay store here:
http://stores.ebay.com/BLUE-FLAME-PERFORMANCE