A:Answer it would be a lots of work to upgrade 1080 Ti. first, the space is limited, so you need a card with 2-2.5 slots large with only two fans. you may also wants to change the power supply as well, since it is only 500 W max, i assume you want a good CPU with 1080 ti. the last thing would be the cooling. the whole case only has one medium size fan. with a 1070 blower card, most heat wont remain in the case, but 1080 ti would be a whole different level. if you wants to replace the case, i suggest you just build yourself. why use 1080 ti with a i7-7700, at least go with 7700K or 8 gen CPU.
