Thanks for the info on running the airbox Uni filter backwards, I figured it would be fine considering so many were using it.
I swung by my local dealer and asked for the two airbox seals without the filter, they don't carry those in stock since they come with the filter and had to order them. Those o-rings are so soft I wouldn't trust them for more than one clean/inspection cycle of the filter & airbox. The pair of seals run about $12, cheap insurance for the weakest part of the intake system.
That Uni filter is currently out of stock everywhere but Uni it seems, and they want another $10 for shipping. Or, wait for Amazon to get it in stock around the 25th of this month.
This was my airbox at the recommended change interval, $50 or so for a filter that allows that much junk through is a cruel joke; looks like there's a K&N on there. I'm gonna go with the Uni in the airbox and also the R2C. I ride alone on dusty trails at mostly 25-40MPH and it seems the front wheel throws all of its dust into the air intake.
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