can you cut one open and show the internals - I have opened one K&N nut type filter and it was very very badly made - it had paper end caps and a paper filter element and a very weak antidrainback valve with NO seal and a crooked bypass valve that would actually flush the accumulated particles back in the engine.
The filters I have mentioned - I use in extreme applications in earthmoving and industrial applications whose engines are so expensive you could buy 10 Honda civics in its price. These filters actually have a fabric/cellulose hybrid material with metal end caps and silicone drain back valve seal and a positive sealing bypass.
You can for sure sell these filters in Pakistan as "GREDDY" is a hallowed name here - and anything saying greddy will sell no matter if its a garbage can. As this is an international forum please refrain from posting HP gains from oil filter application. If you want to advertise a filter, you talk about filtering ability to a certain micron level - and bypass pressure level, etc.