I physically measured it with digital calipers.
I must have received a shorter version by 0.25" or 6mm, but my actual guess is that Cooler Master might round up a bit to make the numbers a bit more user-friendly to read to allow for slightly more clearance.
PLEASE CORRECT THE HEIGHT BEFORE OTHER USERS FALL FOR IT LIKE I DID
Luckily I bought it via amazon and I can return it without additional costs. I have this cooler, right now, in front of me, I've measured it multiple times and the height is the one listed in the box .
The height listed in the article is only possible if by accident the measurement was done on the middle part which is lower, but you need to measure the highest point to make sure it fits in the case! When other users claimed the height was wrong, you reaffirmed it was correct and that's why I bought it, but it's NOT correct.
Another possibility is that you measured and then by accident used the measures of a different one (this is listed as the same height as the Hyper 212 on its review when this is obviously higher).
Even if you got a smaller one, it shouldn't be advertised as a 158mm cooler in the review and then reaffirm it because it's misleading and the product that the users will get is actually 165mm.
Please correct it before others make the same mistake I did for trusting the measures here.
Please explain 'cooler upside down'?
Airflow moves from the 'front' of the cooler towards the rear of the case. I believe that you feel that the orientation of the heatpipes and cooling fins dictate the direction on how the cooler can be placed but, no, as long as the fans are moving airflow through the cooler in the same direction and towards the rear exhaust fan, it is installed fine.
It means that this particular cooler has a design on its sides to help the airflow. It has nothing to do with the fans. I don't know how much it actually helps, but it's advertised to be used in that particular orientation regardless of the fans.
Try reading a few posts up. Rubix already addressed this concern in Sept of 2018.
This didn't help either. The package has the right measures, I can insert images to prove it if necessary.