Heres what i used for a bigger intercooler (on a budget!) on my S2.
One on ebay now, just cut the top bigger pipe off, cut it down and reposition it then weld it back on! 10 minute job, same size as a pace, fits just as easy (proberly easier!) works just aswell on mine, normally go for 50 quid!.This ones still on a fiver!. Cheap upgrade for the money!.
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=10428&item=4512951 217&rd=1[/img]