Reddit reviews K&N RC-3680DK Black Drycharger Filter Wrap - For Your K&N RC-3680 Filter
We found 1 Reddit comments about K&N RC-3680DK Black Drycharger Filter Wrap - For Your K&N RC-3680 Filter. Here are the top ones, ranked by their Reddit score.
This product wraps your air filter with an additional pre-filterExtends service interval of your K&N filterDurable silicone treated polyester material with stitched elastic openingsWater repellent treatment typically lasts 1 to 2 years
That's only for the r56, as the airbox is at the rear of the engine bay squeezed behind the engine bay and the firewall. I've heard nothing but good things about it though, I don't think the rain would be an issue unless you were running under a waterfall. They do make dry filter wraps that you could use to prevent water intake if you're super worried though.
Although, i was thinking r53 vs r56s, i didn't notice this was for an r50.