I’m not happy at all that my primary drive clutch in the CVT system was badly worn at only 500 miles. Polaris did a goodwill gesture as they call it and giving me a new primary, and my dealer tells me that there’s a 0% chance that they’ll do that a second time. So this is my first step in trying to make it last longer this time. I used two four-inch couplings and a 4 inch dryer hose from Lowe’s ($20), and a $20 air filter from Amazon. I just realized yesterday that an oiled air filter isn’t going to be good for the CVT system, so I’m going to get a dry filter. They cost about 50 bucks. I’ll then throw the $20 one on the engine intake side. The first coupler installs in the top of the bed. It slides right in with no trimming, and there is a lip in the center of it that keeps it from pulling through. I marked the bottom side with a pen so I could drill some holes in it using self tapping sheet metal screws on my bench. I then took the screws out and put the coupler back in the bed and installed the screws on the bottom side to hold it in place. That way there’s no modification to the bed at all. The second coupler goes in the CVT cover, and I trimmed a V out of it so it doesn’t shroud any air going in there. I used gorilla tape to hold the coupler to the CVT housing, and then I put the 4 inch flex hose over both couplers and hose clamped them on. The hose clamps have to be very tight to keep the hose from pulling off. The stock rubber hose is 4 inches at the CVT cover and 3 inches at the bed. That doesn’t seem like good engineering to me so that’s the reason for going 4 inch all the way through. Now I just need to get the suspension crossed up and see if the tire rubs on the hose or not. If it does, then I will find a 45° 4 inch coupler to use at the CVT cover.