Air Filter replacment, Cone or panel???
 

gonna change the filter on MY99 STi, it's got a ropey old cone filter on at the mo but I was thinking of putting the air box back on with a decent panel filter...

What do you guy's think is best to do???

go for a apexi induction kit! it a dry kit or get a green panel air filter, tsl recommend them

Until you are going for big power and put money and effort into it stick with the O/E sytem and a K+N panel replacement.