Well I am trying to figure out how to snorkel my 2003 500m. So far I know I have to have a lexan for the lid and seal it up and Clap or bolt it on. Now for the hole pipes and stuff. I have looked around and have seen them come out from the right side, left side, the top, the bottom, and back. Well this got me thinking (mainly from mudded prairies snorkel) I was thinking 2 1 1/2" 90s (the right side pointing towards the front of the bike, then on the left side have the 90 pointing at a downward angle facing towards the front of the bike) then have 1 1/2 spa hose (the right side running right next to the plastic next to the carb, then on the left side run it under the tranny and shifter and up). Would that be to much restriction and with 2 1 1/2" pipe, or is this hole idea crazy and I am just making this harder than it really is? Blah learning about a new quad is tuff. bang your head Also vent lines carb, brake vents?, front and back diffs, is there a gas one?, and radiator. Am I missing any?