[A930Rocket]

There's a bunch of opinions on the aftermarket air filters. One problem is what to do with the line form the air/oil seperator? If you just install a small crankcase vent, it will eventually get wet enough to drip oil I've heard. Someone carries an billet air filter that has a fitting for the line from the air/oil seperator, but it was like $300. It was discussed on the Rennlist 911 Turbo forum awhile back. I have mine running to a Moroso air/oil seperator that has breather on top. $75 from Summit Racing.

The one thing that I like is that they really clean up the engine compartment and make it easier to get to a lot of things.