Just ordered myself a K&n panel filter for $A84 delivered from Supercheap Auto.
They have 20% off this weekend.
Normally $105 or about $110 off eBay.
I checked my stock filter and it was filthy. I reckon the dealer hadn't changed it in a very long time.
https://www.supercheapauto.com.au/p/...87/388193.html
This is for the N54.