Installed the GPU on the stock Cooler Master H500M vertical bracket instead of the Vertical GPU Holder Kit. I must say It looks way cooler than the external bracket.
I thought the card might face breathing issue but thanks to the 200mm front intakes, the temperature is stable as well!
And BTW, the Zotac 1080Ti AMP Extreme Card is so heavy the bracket started to bend a little. So I had to use another master accesory called CM VGA Holder to support the right side of the card xD
Basically I needed to use 2 cm master accessories, the cm vertical kit (for the riser cable) and the cm vga holder. If your card is heavy as mine Id suggest you to buy the vga holder as well.