Frank, there are rebooted pictures at the end of this thread: http://www.talkmorgan.com/ubbthreads.php/topics/41344/Re_Series_1_Roadster_Air_Filte#Post41344
Could these be the ones you are referring to? If so, the duct is not bespoke, but obviously what was delivered with (some of) the Roadster, and the item I am looking for. But the question remains: Is it worthwile? Will it make a difference? A difference noticeable to the driver or to the endurance of the engine, that is.
Robbie

Robbie the Norseman
2004 V6 Roadster
Sherwood green