Oh bye the way Polaris has completely redesigned the filter system for the 2009 model due to the problem you are having. from what i have read from your first post you may be the 1st owner and that means maybe they are behind in the notice, I hope the info above will help you resolve the problem, any other questions i will be happy to try to help and please let use here know the out come. there are a lot of people with your problem :?:  :?:

This is a list of changes for the 2009 air boxes posted on the PRC site.

The following is a list of changes of the Model Year 2009 RZR air intake system.
>Better sealed air box lid. This was accomplished by adding a 3rd clip. 
>Better Throttle Body boot and connection.
>Hose clamp was replaced with a new injection molded air filter sealing ring.
>New “closed cell” foam was placed around intake dog house.
>The filter was changed to have 100% more pleated surface area and 2 ½ times the pleat depth. A new severe duty environment type media is now used.

On my latest research it seems that Polaris has a fix for the problem but is it enough, There fix does not include all the 2009 upgrades and only includes an o ring and updated filter, If i were you i would upgrade yours to the 2009 parts spec's and see if you can run a snorkel like the ranger xp has to get it into cleaner air. The ranger xp has two filters, One at the snorkel under the hood and the main one behind the intake.

You are welcome and also if you have not done it yet put it in cycletrader as well, a lot of people looking for used equipment go there first and also try craigs list, i know of people that use that service as well, a friend gets all his rhino parts from them. :!: 

you are welcome for the info and i will keep a look out for any more like you said, At this time i do not remember were i saw them.  :?:

I would really love to see more on TV. a couple years ago at are first corr race in the A.V. at the Lancaster/Palmdale fair grounds they did UTV racing and was on national TV but the problem was NBC and Speed vision removed the UTV racing from there broadcast and just showed the corr trucks.   

That is a one hell of an inventory, It really looks good.

It has a hotter cam and better piston and exhaust then the stock 800 engine . the stock RZR has around 48 Hp and the RZR -S has 55 hp, and beware for the 70 hp new sportsman 850 engine that will most likely show up in RZR's in the future, or at least the race versions, here is a link to more info.  http://www.utvguide.net/polaris_rzr_s.htm      

That is a good looking machine, What do you have in it know if you don't mind me asking.