Where should I put my extra fan?

Feb 28, 2018
48
0
30
Hi I just got a kraken x52 from nzxt and I am going to mount it to the front of my case. I have to remove a fan from the front to do so and I am wondering should I put it on the top of my pc for intake or exhaust? I only having the top left for mounting any extra fans. I have one fan for exhaust in the rear.