it's mounted on top of a supercharger.
It would be legal if I went and saw a cert engineer (our local guy is really good to deal with) and got him to certify my car for the supercharger. (Prolly cost about $300)
It's not too high, and the air cleaner would fold like a house of cards if a jaywalker, I mean pedestrian was to hit it. My car has a cert plate for some of the mods, just not the blower.(or the brakes) I can have the blower off in like 30 mins for when I need to pass my 6 monthly roadworthy inspections. (And a spare bonnet with no hole, painted when the rest of the car was)

That Vg val has a forged 318 turbo in it too. (he consumed $745 gas over the weekend)

The whole article is posted here http://oldschool.co.nz/phpbb/viewtopic.php?f=29&t=27179&start=120