the deckplate itself , is made for boats , its a 2 piece assemply , the cap itself , which screws into a flanged recipticle, the cap has a rubber gasket , and when you putthe reciticle in the air box you seal it with sensor safe gasket sealer , when the cap is in place it should be air and water tight. there has been some discussion about warm air entering the air box , while moving this isnt a problem, but while at idle in a stopped postion you will be sucking in warm engine air , i have thought about making a sort of air dam which would force air from the grill area to the deckplate. its jsut something ive thought about and would be fairly simple , but it also wouldnt be totally warm air free, i hadnt planned on making it a sealed unit , but in theory you could , but then youd be losing some of the ability to gain as much free air as possible , it wouldnt essentailly become a air dam , or forced air type system.

airrikk17