Captain How'd you're right yet again 😁
nmK12 if you're getting an S air box make sure it's off a late k12s, 2007 on, because there were recalls on some earlier air boxes.
Otherwise the flat k12 filters make some mighty fine induction noise ... I agree with trimming the plastic down to fit but wonder how it would handle really wet weather 🤔
Didn't do it to my k12r and still thinking about it for the k13r ... but I'm too lazy🤣