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               Originally Posted by 
              Kev  
              I do not know of any air filter that will sit submerged in water & not let water in, most oil based filters are splash proof. 
              
 If you oil a K&N or DNA correctly there should be no dirt entry.
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         Thats correct... but the DNA filter that replaces the side of the air box
        
 will let water into the air box... with out that DNA filter the water has to be
        
 up to the bottom of the seat to enter the air box...
         
        
 So what I was saying Don't use the DNA filter on the side of the air box
        
 if theres likely to be any deep water crossing...