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Seal it up. It will let unfiltered air enter the engine including dust, sand, and/or grit. All this scratches and/or prematurely wears out the bores, etc.
rktdoc got it right. No need to seal it. It is NOT part of the air box and won't let unfiltered air enter the engine.
Originally Posted by AlanS
Seal it up. It will let unfiltered air enter the engine including dust, sand, and/or grit. All this scratches and/or prematurely wears out the bores, etc.
Seal it up. It will let unfiltered air enter the engine including dust, sand, and/or grit. All this scratches and/or prematurely wears out the bores, etc.