I heard the GTX is for higher cfm fans, and my fans are only 68cfm. Not sure if they'll be good enough.
EDIT: How would the pa160 compare to the pa 120.2?
..360 GTX Beats PA.3 Using 47cfm YL Fans
..Martins HWlabs 480GTX Thermals
Shrouds will help on them if you have the room...
..Part 1- 480 GTX-Temp's with and with-out shrouds
..Poll: Push or pull configuration for Radiators
..How To: Make any Sized shroud in 2 minutes
..How To: Build A Performance Shroud
The PA 160 is just about as good as the PA.2 from what I understand...