I have a custom elbow on mine and only cos I have had to as the turbo is too big and had to be angled away from the block with a custom bracket from the manifold to turbo then the stock elbow was touching the rad support panel hence the need for the custom one, there was also a new complete downpipe made and welded to my goose and the centre box removed and replaced with a section and a 5" tail fitted!
how nice it is to have friends in the custom exhaust business, dont know what its going cost yet.
can post a pic from my camera phone for interested parties.
regards
Neil