140mm AF or 120mm SP exhaust fan?

[frldyz]

Pretty much done buying everything I need for my build.
Just addinf the final touches.
My Corsair 760t case comse with 2 x 140mm intake fans and 1 x 140mm exhaust fan. These are Corsair fans. Im not sure what kind they are. After looking @ them closely and the pics of their other fans they appear to be AF fans...?
Correct me if Im wrong. Aren't SP fans more ideal in an exhaust if the air is potentially being restricted by something in front of it ( like the exhaust grill? ) Same with the intake.
If SP fans are more ideal. Would I be between off swapping out the 140mm fan it comes with now for a Corsair 120mm SP fan? Same with intake?

 

[frldyz]

*** The reason I want to replace the exhaust fan is because the inside had a red/black theme. And the black fans with red rings would look great.
Yes.. I am nieve

 

[cb600fshornet]

I can't pretend to know much about this I'm afraid, I simply have a fan at the front sucking air in and a fan at the back pushing air out the exhaust! I wouldn't have thought it'd make too much difference either way though!