Ok atm i have am h80i with stock fans on a 4770k. They sound like a mtf above 40 degrees.so im either getting 2 nf f12 push pull using them exhaust in fractal define r4 have 2 140 mm as intakes infront and removed hard drive cages. Thing is where i live sweden that cost me 440kr and a new noctua d15 or what its called the new airflow one cost me 799. I do plan to overclock a little once i get everything sorted. As you see its not a huge difference in cost and from the testing linustectips did the airflow setup seems like it kicks the h80is ass. Any help would be lovely☺ or suggestion on something else.