There is *just* enough room to squeeze some 2 1/2" shop vac type hose down through the fenderwell and out to the bumper. It's easier to get the hose routed if you loosen up the fender liner and drop the front splash plan. I trimmed a 1/4" or so of the inner fender bracing under the fender liner to give the hose a straighter run to the intake. (Dremel...) The link mentioned above has info on loosening up the fender liner.