Our Vents for the New 2018 Yamaha Sidewinder Mountain sleds are one of the best ways to keep your sled running cooler. Our vents will improve belt life and help to keep under hood temps down while keeping snow and moisture out of the engine compartment. All side vents come with a layer of prefilter on the clutch side to prevent fine snow from entering the clutch compartment. You have the option of running prefilter on all vents for colder climates that consistently have very fine snow. Vent kits come with Black aluminum rivets, paper template and detailed instructions.