| Steve & Phil, I've just recently installed my 1 piece carbon airbox (it's just the lower half) and it's sides and rear edge are butted up tight against the inside of the tank. Ok there will be some air leakage under pressure but it's near as dammit sealed.
This is where my interest is coming from with the front plate to close off the 'sharks mouth'. The foam I've installed, round the side edges of the tank is non breathable petro/oil resistant and provides an effective seal between the airbox and underside of the tank.
So it would seem that the rear and sides of the airbox are closed off and it will breathe through the carbon X tubes, there's only the mouth of the tank to resolve - to my reckoning this being closed off would make a rudimentary sealed/pressurised airbox ??
thoughts... | 
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