Ok . . . here's what I did (high level):
1. Went to Lowes and bought
two 3" to 2" rubber pipe adapters in the plumbing section.
a 5' piece of 2" sch 40 PVC pipe (note: they have black and white . . . I bought the white and painted it, but I would buy the black).
two 2" pipe connectors (to join the two pipes together . . . you can find these in black as well)
then I bought two covers to keep the water from going down the tubes. I'm not sure what they are called, but you can see them in the pictures. They are gray in the store and fit on a 2" pipe. I cut some of the plastic out of it to ensure good air flow
I ordered two UNI pre-filters that I will slide over the ends to keep dust, leaves, bugs, etc. from being sucked into the tubes. These are not pictured as I haven't recieved them yet. They were just under $40 on e-Bay for a set of two/black.
2. Then I removed the bed entirely from the RZR.
3. I have a Roto-Zip tool and shaved just a very small amount of the lip off of the air intake tube for the motor, and slid the 3" rubber fitting over it and tightend it down with the band clamp.
4. For the PVT intake, I just put the 3" side of the adapter on with no modification and tightened the clamp.
5. Now, one adapter sits higher than the other, so I had to do some measuring with some pipe in the adaptors to determine how high I wanted my snorkels. I cut some pipe and inserted the pipe all the way into the adapter until it bottomed out and got a level to ensure they were straight. Then I made some marks on the cross-bar so I would know where they should line up. I took the pipes out of the adapters, put some paper towel in the top of them to keep the shavings out, and set the bed back in place.
6. Then I took the pipes and lined them up with the marks on the cross bar to determine where they would sit on the top of the bed rail. I outlined the pipe on the bed with a pencil and started cutting (very slowly and carefully) with my Roto-Zip. I would continously keep checking where I needed to trim next by placing the snorkel in and out of position. Eventually, the hole was fully cut and the tube dropped down and into the adapter.
7. Once the holes were cut, then I marked where the tube an inch or so above the bed line and removed them. I cut them there because the tubes are too long to install the bed. That is why you need the two joining pieces (sorry for all of the layman's terms) . . . I'm obviously not a plumber.
8. With all of the pieces cut, I used plastic primer and then painted them. Installed the tubes and re-installed the bed. Finished!!
Start to finish (including figuring out what parts I needed, etc. was about 6 hours (not including paint drying time, etc.). I have about $40 in the parts, plus another $35-$40 for the pre-filters. Not bad for cleaner air. If I was really serious about going into deep water, then I would have snorkeled the PVT exhaust, but I'm more of a trail/mud rider than anything. I have a boat and a jet-ski for the water
Hope this helps. I'm sure the kits you buy are good . . . nothing against them . . . . they might be better. This works for me.