I have this done on my bike 550, it works wonderfully, the equivalent of having a big trunk for a motorcycle, that airbox is DEEP. I usually keep my gloves in there, or my sunglasses if I ride at night in case I stay out. The other day I put my half a sandwich from the place we ate at in there to take it home haha. I sealed mine up with some of that metal backed duct tape, it has held for a long time, everything stays dry.