exhaust manifold

Been wanting a manifold for a long while and knowing the Italians like them clios too I thought I'd have a look at ebay.it


Found this ... http://cgi.ebay.it/Marmitte-colletto...item3a5814b5dd


Looks very professional, only concern I have is that the lower part of the manifold seems shorter then any other manifold, like the k-tec ones for example. The auction also says they have them available for cat and non cat versions. Would that be the difference I'm seeing ??

and are valver and williams manifolds the same ?

well im no expert but the downpipe is longer on the williams so them saying its for both would be wrong. maybe you specify which one you want? and if im wrong the downpipes are the same length and the cats are different lengths?

someone will verify for you! :D