The Special K's show rolls on
The Australians took down 15th seeds Ariel Behar and Gonzalo Escobar in three sets, 6-4, 4-6, 6-4 inside a packed Kia Arena.
At one set apiece, the third and final set the Australian team got a break of serve in the fifth game.
Later at 5-4, Kyrgios served for the match, before Kokkinakis finalised the victory with a brilliant backhand volley at the net that sent the masses into a frenzy.
The bromance was on display as Nick Kyrgios and Thanasi Kokkinakis booked their spot in the quarterfinals
Michael Venus and Tim Puetz will face the Greek Australian boys next up.