Yeah, with the foam filter it seals up against the rim of the inlet opening. After the Dyno tune I did refit the snorkel and progresivley cut it back to see if I could get the same airflow and still offer some protection to water entry. After several cut backs it still wasnt as sweet as it was with it totally removed, so it now sits in my wtf box at the back of the shed ! Iam just looking at making a large 100mm "outer" collar to minimise water ingress, but not hinder airflow. The design could be better for a bike thats designed to go offroad but I like a challenge, so its off to the plumbers merchants and a new blade for my stanley knife.