[REDRIDER]

Has anyone found a paper filter for these other than the stock one? I have a UNI I haven't put on yet but I honestly never liked oiled filters, never used them. I was an auto tech and saw too many issues arise from them.  I would rather find a good paper filter. Anyone found one that fits from something other type of vehicle or anything?  What exactly is it that goes wrong with the stock filters do they come apart? Where is the failure point?

[NMKawierider]

The paper ones are letting too much get by where the oiled foam stops most all. Foam filters with the correct treatments are the best you can do for your off-road machine...as long as they are not over-oiled.

[REDRIDER]

Too much air??  like unfiltered air? Or they have too much air flow and they are set too lean from factory?

[NMKawierider]

Too much air??  like unfiltered air? Or they have too much air flow and they are set too lean from factory?

The OE filtration material is letting too large of dust and dirt particles get through. I wish I had taken some photos of what I found in my intake from the short time I ran one on mine. People would freak..I know I did.

[REDRIDER]

Ok gotcha. I will look at my intake when I change to the Uni, I will also talk with my local guy and give him the OEM filter and see if we can match something up to a good paper filter.  I know some people are die hard oiled foam filter guys but I do not like them too much room for mistakes and have read studies that paper filters are indeed better for filtration.

[NMKawierider]

Ok gotcha. I will look at my intake when I change to the Uni, I will also talk with my local guy and give him the OEM filter and see if we can match something up to a good paper filter.  I know some people are die hard oiled foam filter guys but I do not like them too much room for mistakes and have read studies that paper filters are indeed better for filtration.

When you pull the filter, take a cotton swab and run it around inside the intake track. If you see any particles on the swab...and if you see any, that's just a fraction of what's got through and into the cylinders and...your engine had lost many thousands of miles of life already. This is the #1 killer of these engines. We urge all owners to change them immediately. If you don't see any particles...you are one of the lucky 2% that got a decent filter.

[Peteh]

Another possible option
http://www.r2cperformance.com/products/category.aspx?CategoryId=48

Part # CO10523

[REDRIDER]

NMK I am not doubting the high failure rate of these particular OEM filters. I am saying I prefer a good paper filter over a foam or K&N filter, A good paper filter is very good at filtering and less room for error.  I'll see if I can find a good match once I get my OEM out, if I find one that fits right I'll post it as an alternative to a foam or K&N

[NMKawierider]

NMK I am not doubting the high failure rate of these particular OEM filters. I am saying I prefer a good paper filter over a foam or K&N filter, A good paper filter is very good at filtering and less room for error.  I'll see if I can find a good match once I get my OEM out, if I find one that fits right I'll post it as an alternative to a foam or K&N

Ok, well, it's all up to the preferences of the owner. Studies do show a quality paper filter does filter better then most anything else tested but flow rate tends to reduce quicker. I just pulled my oversized Unifilter out today to see if and how much got by my new large cone-type gauze outer filter. Although that filter was extremely packed with dust a little did get through to the airbox. Keep in mind it was not oiled..just dry...and the amount that did get through wasn't enough to make me clean the Unifilter by a long shot...but me being me I did anyway.. Ordered some fabric-filter oil for it and will use it on these extremely dusty trips like I just had but I think I'll just keep the mushroom filter on with the two-stage Unifilter material for my everyday usage. Nothing gets by it and will last long enough for a hundred miles or so of dusty trails.

Biggest thing is keeping the BS out of the engine. Whatever it takes..do.

[REDRIDER]

I plan to do a prefilter anyway probably a dry foam to keep high flow and just filter most out on the pre filter then do a paper on the main.  I don't want to double up on restrictive filters either.  Foam with oil can be restrictive and make you run like crap.  Rzr guys have a lot of trouble running them.

[NMKawierider]

All about surface area. That's why I went to the larger ones. On the other hand, most all of us here have switched to either the Uni or TwinAir on our 800s and found no difference in how they run so rest assured they have been tested...and all is well with either...

[BorntoRide]

Another possible option
http://www.r2cperformance.com/products/category.aspx?CategoryId=48

Part # CO10523

New to the Forum, Did you try this filter? Very interested if it worked. I'm like the other guy and hate using the oiled filter especially if on a 4-5 day ride (to messy, can't clean them if away from home and it's a pain to change them all the time).

[REDRIDER]

I haven't. They would have to be contacted to get measurements as they don't list one for a zforce. I do know that the RZR filters do not fit, they have a larger diameter inlet.

[Z8rider]

There is a reason why motocross bikes have used oiled foam for years and still do... it keeps out the fine dust and you can service it at the end of every day. SxS users would drop their beer if I told them to clean their filter after every ride. Motocross guy... they just know thats what you have to do....

[NMKawierider]

These R2Cs filter down to 5 micron which may be good enough..but for me being a "filter-nut"..it isn't. There is dust out there down in the 3 micron range. Some talc dust for example. This is why I run dual giant, oiled filters on mine. Not only will they get it all, but they can go for a very long time between cleanings if necessary.