C210 GT-EX with Naca ducts?

Hi guys,

todays JNC features a video of a japanese tv show segment with a 2000GT-EX speeding through the streets.. as soon as they get in the car and starting speeding through the streets, there is a shot of the car overtaking a van at 1:16, it looks very much like the car has a naca style duct on the bonnet

http://japanesenostalgiccar.com/blog/2010/07/09/friday-video-c210-skyline-turbo-vs-bomb/

I spent a little time googling but couldn't get a clear picture to see if they were standard, thoguht i would throw it out to the brain trust

it might be an interesting addition to the 240K if / whenever we finally get CF/FG bonnets made

Kent