Does anyone use these little filters, and if so how do they work for air flow?

 

I just took the lid completly off...

 

I use them on the 250's. It is nice that they have filters, so they offer at least some protection vs just running with the lid completely off.

I run EHS Racing lids (with Outerwears) on my bigger quads, and I would recommend it for your Z, unless you are always in wet conditions.

 

Sure do. I have 9 of the 1" uni's in the air box of my 700 King Quad, snorkel removed, and I give them a tiny bit of filter oil after cleaning them. I like them and I think they help.

 

either take the lid off or remove the airbox completely. Those stupid lil uni filters did nothing but get dirty all the time on my bike.