The penultimate round of this year's competition, where the Springboks are the defending champions, features them hosting Argentina at King's Park, before a rematch with the same opponents next weekend at Twickenham in London.
Australia head the table with 11 points, followed by South Africa and New Zealand on 10 each, and Argentina on nine. It leaves all four sides still very much in the hunt for the silverware.
"For us, it's not about putting on a show," Kolisi told reporters on Friday. "We are playing Test rugby and this match is basically a semi-final. The focus is on getting the desired result."
South Africa won their quarter-final, semi-final and final at the 2023 Rugby World Cup each by a single point, showing nerves of steel and the ability to grind out results.
They have tried to play a more expansive game this season with attack coach Tony Brown putting his stamp on the side. That has had mixed success but did culminate in a record 43-10 win over New Zealand in Wellington last time out.
They may, however, return to type against an Argentina side who are better than most at punishing loose play.
"They are a team that brings physicality and skill, so they are certainly not going to just give this game to us," Kolisi said.Â
"The Pumas are extremely professional on and off the field, and they always play with passion, so we are under no illusions about the challenge ahead.
"We want to do something we've never done before, and that's to win back-to-back Rugby Championship titles, so we have a lot of motivation within this group as well."
The Springboks have struggled at the breakdown this season as they commit more players in attack and Kolisi expects it to be a key battleground again.
"They have physical and very experienced loose forwards and we've been playing against them for years," Kolisi said.
"But Jasper (Wiese), Pieter-Steph (du Toit), and I complement one another really well, and we know who needs to fulfil each role according to our strengths."
