my 5 came with a HKS filter and I guess with hindsight I really should have done some googling before I went ahead and tried to clean it

Long story short, degreaser eats HKS foam elements for breakfast and now i have a choice.
Track down a replacement element, which I think is going to be a pain in the ass because not many people stock HKS, or replace with generic/K&N pod.
I have been looking around and it seems that HKS do a 3 layer dry element for their filters, anyone have experience with these?
cheers
MB