Just an FYI, Rob sells a Plastic replacement air intake hose that will replace that shutter-air inlet. <SNIP> I would probably also consider > making a whole new air intake system that would replace the restrictive > 'shutter-air inlet' (part #105952). It would be a lot of trouble, and I > would probably never sell more than a dozen or so of them. But I like to do > this sort of thing just for the fun of it. <Snip>