Something I've been wanting to do for a while: for the sound and for the prospect of better performance; a "cold air intake" (CAI) for the B7. It's turned out to be an expensive pet project really and if I end up using it or not remains to be seen, depending on:

Measured improvement (grams of air / second)
Intake air temperature change (can I fab a heatshield!?)
Ability to scale the MAF to greater diameter piping.

We'll have to wait and see, but fortune favors the bold!

PARTS:
BMC Twin Air conical air filter (911-FBTW76-200P)
Boost Products Airflow Straightener Screen (HC-MAF-76)
Kestrel Prestige aluminum sensor boss