Originally posted by Stazi the Aussie:
Neither - all reverse cone design airfilters are crappy. Dyno test on the Duratec have proved this.

A regular K&N pod works best. The one you want is an RU-3530





That mounts on an adapter? It didn't look like the K&N drop-in that I already threw away.

Mirko K&N Filter Adapter, is that a good choice?