I can't see paying $300 for a blow molded snorkel, SO...
I decided to make a removable one from PVC. I wondered if 2" would allow enough air flow, and so far so good. I don't drive the "Turtle" on the road, so I don't know how it does for freeway driving, but on the trails it does just fine, seems to flow plenty of air. The inside diameter is just a touch smaller than the inlet on the throttle body anyway.
I spent about $30 on parts not including the filter, as I already had that. I think I paid $20 for the filter, so, less than $50 altogether.
I routed the piping so that it hugs the fender, and is actually inside the tire overhang and mirror, so I won't drag it off on rocks and limbs. The whole unit removes in seconds, so if I am climbing rocks or tight trails, I can take it off if I need to, and the cone filter will install right on the throttle body intake tube.
This is for an 8 valve 1.6, adaptations would have to be made for anything else.
I used:
Material:
2 - 2" to 2" rubber couplers
4 - 2" 45 degree elbows
1 - 2" 90 degree elbow
1 - length 2" sch 40 pvc pipe
1 - 2" to 3" bushing
1 - ricer cone filter (fits the bushing perfectly!)
1 - 2" pvc pipe hanger
PVC glue, 1 sheet metal screw, misc
Tools:
Drill
Saw
Hand tools
Sandpaper
2 1/2" hole saw (for metal)
If you are careful, you don't really need two rubber couplers, but it makes it easier to line up, and very easy to remove the snorkel to work on the engine.
You can route the snorkel several ways, I chose the location you see in the pictures for ease of installation.
It took me a couple of hours of tinkering, and a couple of trips to my local hardware store to get everything.
One cool part is a standard coffee can will cover the filter so rain doesn't enter when it's stored.
I am not worried about rain or splashing, but if you are, you can easily modify a coffee can as a splash/rain shield and leave it in place.
See photos!
I will test it out this weekend in Livingston KY, and will report back!
All photos here:
http://www.forumsigs.com/users/quaddawg605/Snorkel/