Where can I see some pics of this case and it's vents? Doesn't it have a couple 120mm fan vents? With a couple good intake fans, you probably don't need an exhaust fan. Case is like a cooler .. case intake only is like push fan on a cooler. My guess is if you are brave enough, cut out the back 92mm to a bigger vent hole, rempve PCIe slot covers and don't use the I/O shield for motherboard. This will give you more rear vent area .. which is more exhaust airflow area to match the intake vent / airflow area. A can can only flow as much air as the lesser of the two; intake and exhaust. We can have 4x 140mm intakes, but if we only have 1x 140mm exhaust, the 4x intakes can only flow as much air as the 1x exhaust hole can flow. Hope that makes sense. You might find 5th post in "Ways to Better Cooling' linked in my sig helpful. It's about case airlfow.