[DCM]

@gfmoto
Emerson posted the part #'s for the Twin-Air that will work above in this thread.  As for the UNI the part # for this one is UP-6229AST.
I'll let NMK give you his thoughts on the better one.  I went with the UNI because it seems most of the guys here have used those when swapping out the paper filter.

[NMKawierider]

Both UniFilter and TwinAir's dual stage filters are pretty much the same as far as the grade of foam materials used. The TwinAir as a taper to it where the Uni doesn't but I don't think that really matters. I personally think both have not enough surface area for the 800s but they both do seem to work fine, just wish we could get a bigger or longer one with the same flange size. Like it to be an 8" instead of a 5 or 6. Think it will fit. I have not used the foam prefilter but do use the Outerwears prefilter on my second filter..which by the way is a dual stage Unifilter.

So in short, In my opinion, both are great filters and work very well. As long as the OE paper is gone, you are way better off.

[Bobbed06]

Looks like I am gonna pick up a 2016 Z800EX EPS tomorrow.

I would like to install the UNI Filter option immediately. I found two part numbers commonly used. Would any of you all be so kind as to clarify which is the correct best fitting option for me please.

Uni 2-Stage Straight Pod Filter - 57mm I.D. x 152mm Length UP6229ST

or

Uni Air Filter 6" Two-Stage Pod Air Filter - 2-1/4"x6"/Angled Mount UP-6229AST

Thank You, I am quite nervous about dropping a big chunk of coin on a newer brand. I hope I am making the right choice....

[NMKawierider]

This one:

Uni Air Filter 6" Two-Stage Pod Air Filter - 2-1/4"x6"/Angled Mount UP-6229AST

[Radian]

OK gang it's time for my first oil/diff change after break in.  I've read the posts and looks like Shell Rotella 15w/40 would be a good fit for my area and machine.  Question is can I use that in the diffs as well or do I need to run something heavier?  Service manual says 15w/40 SG or 80w/90 GL. 
Let me hear your opinions.

BTW I ordered a UNI air filter as well and will get that installed next week once it gets here.

Thanks

I run 80w90 in mine during the winter with no issue.

I HIGHLY recommend using a hypoid gear lube.

the 15w40 is a great choice. It offers the best protection for these motors, especially since the internal bearings used arent the best.

If you can, go with the TwinAir + The Prefilter vs the Uni. I have had  much better luck in my personal one. The uni seem to get dirtier quick and requires more frequent services & cleanings.

Emersonsc what is the best air filter to use on a 2014 Terralander 800 (cforce 800) and do they come preoiled?

Twin-Air Filter 156052FR and the prefilter is  Twin-Air 156052DC. The air filter does not need to be oiled, but i recommend oiling the pre-filter.

I am unable to find 156052dc, Anyone have an idea where I can get one. I have looked on ebay and Amazon.

[NMKawierider]

I am unable to find 156052dc, Anyone have an idea where I can get one. I have looked on ebay and Amazon.

I never found one either. I would just get an outerwears prefilter. Just get the measurements and go to their site...get one larger then what you measure though..like at least an inch in all directions.

[Radian]

OK thanks I will look into it!

[Radian]

OK thanks I will look into it!

I have found a spot that sells the Dust cover for the Twin Air Filter.
http://motopartshouse.com/search/?view=search&search_terms=156052dc
Have one on Order