Thanks a lot for your help! I will make research. For the D15S I am not sure. The product page says 165mm with fan, so..I may contact Cooler Master.

I have pretty much the same system as you 4790K  970 GTX 16 GB RAM and a 212 EVO cooler.  I have run it comfortably with the evo 212 cooler at 4.5-4.6 GHz using a decent Affinity Mask of 85 in which P3D/FSX only uses 1 logical core per physical core.  It will get the occasional spike to 70c but averages in the low 60's.   Hope this helps