All true. Were they always open when they came from the factory or did they come with covers that were easily removed?? I am not sure. Also there is always the argument as to what came standard on a car and what is a mod. WRX scoops never faced backwards.

I thought the rule was that there cant be any holes in the bonnet that would allow fluid (burst hose) to find its way from the engine bay to the windscreen. It needs to be baffled so there isnt a direct path. But you know, I could be talking shite as well. I guess make the call to a licensing centre before you do it if you are concerned about roadworthiness.