Media aesthetics aside, ie., some wavy pleats, looks like they all got the job done. 6k mile on the Wix, fairly substantial ocis. K&N extra potting/glue not pretty. Don't know when made but K&N automotive applications have returned to Champ Labs made in the US now.
As for Kawi filter, holes in dome endcap part of clicker type bypass design with compression spring cover (not shown). Champ Labs has used similar on Super Tech ST9688 (old design) and STP S2808.
Speaking of ST, one shown might be biggest one I've seen, looks good. Wonder if that was when they were Wix made. Motorcraft looks good too.
Thanks for c&p.