If you are going to fit an induction kit to a car (my CRX not my Willy), does it matter if you get a larger one than the one designed for the car. I have taken out the airbox and their is a large hole that could take a very large induction kit (nicely away from the engine hidden behind the battery at the fron of the car just behind a hole in the bumper, nice). Was thinking of putting the largest one i could that would fit in the space (an inprezza one or something?). Will this optimise air flow better than a smaller one. I know it doesnt necessarily work like that, but even if its not a huge one, would any size do as long as it was bigger than the minumum size needed for the BHP of the car (i think there is an equation to work out the minimum size). Cheers in advance