After recent testing, it has been found that the stock PCV system may have a boost leak. To eliminate this problem, a check valve is installed, inline, between the throttle body and the pcv valve.

Parts Needed:
1 x Valve,Check,3/8 In (Part #5X781)
2 x Brass Hose Barb,3/8 In (Part #6X410)
Source: http://www.grainger.com



I recomend any brass check valve over a plastic one, you can see here how my plastic one warped from underhood heat.

Approximately 4ft of 3/8 In Hose
4 Zipties or 4 3/8 In Hose Clamps
Source: Local Auto Parts Store



Steps:
1) Buy the parts.
2) Pop hood.
3) Disconnect both sides of the Stock PCV Plastic Hose.




4) Remove the Stock PCV Plastic Hose, This may be a little tricky but It can be done.
5) Roughly Measure how much of your new hose you need to cut.
6) Cut it in half and install the check valve inline.


7) Reconnect both ends so that the arrow on the check valve points towards the trottle body. You may hide the valve and hose behind the intake manifold for a clean look.


8) Install zipties/hoseclamps on the lines
9) Take the car for a drive, you most likely gained 1-2 psi of boost!
10) Enjoy