I just wanna point out how stupid the Secret Weapon one is...
Notice the "hook up for RAM AIR" ???
Well if you know anything about ram-air, it's designed to provide a very small positive pressure by using wind speed to "shove" air into the intake. If you hook up a tube for this that routes to hood scoop(s) or a front duct of some sort, the excess positive pressure would relieve itself at the first possible point, which would be through the sides of the air filter.
So in short, air would be pushed through the center connection from the ram-air system, and a very small amount of that would be pushed outwards at the filter to relieve pressure, and the rest that the motor is aspirating would go through the actual intake tube.
I've never liked the Secret Weapon rice-gear, especially their intakes. :thumpdown: