cm storm enforcer fans

[automaton]

currently I have 2x200mm 110cfm each 1front intake 1top exhaust and 1 120mm rear
I am planning on replacing the rear 45cfm fan with a 120mm 103 cfm bgears blaster I just was on live chat with coolermaster and their tech said it wouldnt be negative pressure but would as I am trying add more airflow and cooler temps
what do you think?

[Soultribunal]

Even with a regular CM fan at the back you are still Negitive pressure as you have more intake than Exhaust. What you are doing by putting on such a huge fan like that at the back is exaggerating the issue.
You could in theory Flip your top fan as an intake instead and that would make it positive pressure.

What I always did was mess around with all my fans to figure out what setup worked best.

-ST