ah that car was never sold in the US, it has a turbo 2.5l, 5 cylinder Volvo engine... Wouldnt work on your 2.0l 4 cylinder car even if you could find it. Wish my focus would sound like that too.
Try one of these for threads for some ideas
Basic Bolt ons: Exhaust Headers/Flex Pipes
Exhaust Videos and Sound Clips --> Link Them Here