Contacting Forge is probably your best bet, but the last post in this thread,
http://www.seatcupra.net/forums/showthread.php?t=192138 probably has enough detail to work out the pipes/parts required. ie. S prefix are straight, A are angled, C is a coupler. The number after an A is the degrees, the next number is the pipe size its for.
If you're looking for somebody else to have already done the hard work, give the guys at Forge a call and buy the parts from them
Ps. Welcome