Purolator pure 1 and Mobil 1 are both great filters.
Changing oil (especially synthetic) at 3000 miles is a huge waste of money. Even on a turbo motor you can easily go 5000 miles. If you don't believe me, send a sample of your used oil to a lab such as this one:
http://www.oillab.com/
Also, our turbos are WATER COOLED, and the motor has an OIL COOLER. There's virtually no chance of oil coking in the turbo or oil breaking down from high temps.