looking for advice . i think i have done a daft thing on the sereis 2a diesle i have cut the air filter off and the brakets that hold it due to fitting a much longer battrey .at the moment i have a cone shape filter just cliped on under the bonnet .what i am looking to do is fit a snorkle on it .so i am thinking it will need a water proof air filter between the sorkle and the engine .or do the snorkle tops act as an air filter .havent looked at one yet just looking to see how its all done cheers dockrat..