Apart from the fact that that isnt a high pressure hose and you'd have to drive through about 25cm of water for it just to go in let alone get sucked up a metre of hose, it probably doesnt make much difference either way and putting it where you have seems like a lot less work... as has been said before I dont think they actually make a blind bit of difference anyway Actually thinking about it the stock system narrows quite considerably as it goes into the wing doesnt it?