Oh you infidels!!
Ok look tests have proven that only when the bike is submerged in water up to the knee that water has been found in the air box, but this was tested with both the stage 3 and without, in fact when you have the bike in water past the tank line, water will find its way in there from the top and from the airbox drip hole.
However other test with a jet wash spraying water at the stage 3 filter have shown NO water leakage unless of course you point the jet wash for long enough to completely remove the waterproofing oil compound that is applied to the filter folds from factory and that is one of the benefit of the DNA filter which can be washed, dried and re-activated with the waterproofing oil available in the DNA cleaning kit.
So to conclude, HOW often does any of you have their Tenere wading in deep waters so deep and for so long?
Oh and I am telling you this at a time when the previous sponsorship between us and DNA has ceased to exist so I have no interest, because I wouldn't be able to sell you a filter because they don't support us anymore.