Hey guys just fitted up my new o2 and fuel controller (thanks Kev!
So ive modded my intake, I didn't want to butcher the snorkel or buy the DNA intake so I made this up using some left over rubber that I line my work bench's with and a $1.05 pvc floor flange from bunnings.
Also note ive kept the Aus 2 piece foam unifilter because it does a better job stopping fine dust than the k and n or Dna filter does.

First cut the rubber to a circle 115mm round to fit the airbox snug as well as the top of the unifilter. And cut a hole in the center so the flange can fit it.

You could mount this downward or upward. I chose upward so I could possibly adapt a throw-away filter sock onto it if needed. Also applied some filter oil to the rubber.

That looks good. The DNA filter lid is pretty expensive by comparison and your DIY job should work the same.
Does it seal tight against the filter top rim?

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2014 XT660Z - Barrett pipe, DNA stage1.5, Barkbuster hand guards and handlebars, Pivot pegs, Teknik suspension, Guard-it engine protector combo, B&B rear rack, Trax topbox.

Thanks yes it seals super tight