I am planning to mod up a full size pickup air box filer system as a pre filter. I rented a 700 Prowler last year in Wyoming. The guy running the rental place said their had multiple engines need replaced under warranty as from dirty getting past the intake system. (because they rent 2-6 at a time and people follow leader up and down super fine dry dust roads all day long.) AC advised them they only get 1 free replacement engine. So that is something to note. Anyhow, I have plans to pre filter with a V8 air box as I do not want to pay for a 1000cc rebuild because of a weak intake filtering design.
Sounds like a good plan! My Prowler came without a pre-filter, and the intake was between the bed and the seat back! Has to be the worse place for intake air! I snorkeled my Prowler in order to get the intake up in a cleaner location. I also installed a K&N Cone filter as a pre-filter. I check my air box after every dusty ride, and I'm happy to report that the filtered air side is very clean. Keep us posted on your install!
When I bought my Prowler I noticed that the air intake was up in the front grille. When I asked the salesman about it he mentioned that that was a modification they did to all of the Prowlers they sell.
They buy 2 inch vacuum hose and route it from the air box through the floor pan up to the front of the machine. Then they simply attach the stock pre-filter to the end of the hose.
None of their customers have issues with air filtration.
A snorkel in MN is a big no-no and comes with a huge fine unless it is stock. This works really well and keeps us legal.
If you wanted to take it one step further I suppose you could add an oiled pre-filter as well.
My Prowler is at the cabin right now but if I remember I'll add some pics of it.
I have been away from home for a few days. While I was gone, my new 2 stage 6" Uni pre-filter arrived as did my new cans of Klotz air filter oil and air filter cleaner. I have had a single stage 4" Uni pre-filter for about 5 years. I cleaned it and re-oiled it once a year.
There is not enough space for a straight out 6" filter to fit , but I bought the angled version. It should fit with no problem. I will know for sure tomorrow.
Looked it up, No Reason was given. Air intake cannot be raised any higher than 6" from stock location! Regulation had a lot of doubletalk, not clear why it is prohibited just that it is! So if I go to Minn. I have to lower my air intake to the top of the motor cover!, or plead Stupid! That is pretty easy!LOL
Wetlands are protected in MN - and many other states as well - so making snorkels illegal for public trail riding keeps people out of swamps, lakes, rivers, and other wetlands.
There are some areas of the state where snorkels are allowed because they have some man made mud pits and water holes and must realize they are necessary.
I don't know if they would ticket you if you were out of state and had a snorkel. You would have to call the county sheriff or local Conservation Officer. If it were me, I would lower it and print a copy of the rules in case you were questioned about it because honestly, not all of the people enforcing the rules understand them as the rules change every year.
Yup, same as here! I can swap my pre-filter for the snorkel and be legal in less than 5 minutes! I try to comply with other states! Except when I was running around downtown Monroe, and the Chief of Police pointed out the error of my ways! Nice guy, no ticket (I'm street legal in Michigan), but he did sell me a Wi. Registration for my Prowler!
I installed my 6" pre-filter today. I am not entirely pleased yet, but I am working on it. Even with the angled coupling, it has little room to sit in. It is better than the 4" single stage, but just not quite the way I want it yet.
Edit: The wider hose clamp from the new filter kept forcing the rubber off the end of the plastic slightly (as seen in the photo). Using the narrower hose clamp from the old filter solved that issue.
The block off panel will not snap in now (without compressing the filter side). The new filter is a larger diameter, in addition to being 2" longer. I am thinking I will add a mesh screen where the block off panel goes.