Ryco new vs Ryco after 6600km severe service, 6 months.
Filter options are not plentiful here, these ones are made in China and are fairly expensive. Any suggesting for a bulk order, I'm all ears
Put the ryco part number in ebay, and "equivalent" after it, you'll get wesfil, ausfil, all equally as good as Ryco, and probably come off the same line.
But can get Mann and Wix, and (per the link) K and N.