South Korea face off against hosts Australia in the AFC Asian Cup final on 31 January at Stadium Australia and they are wary of the threat posed by a Socceroos side in dominant form.
Referring to the 17 January Group A encounter, Stielike said: "(Mile) Jedinak was injured, (Mathew) Leckie on the bench, (Tim) Cahill on the bench, (Robbie) Kruse on the bench, so it will not be the same Australia
"We will have to work to be the same Korea. This is our target. For the rest, we have to take whatever is coming and try our best. We are realistic enough to understand that in the first game we didn't play the best Australia team."
The German added: "When we came here to Australia we left Korea ranked third in Asia.
"What I said before we left was that we wanted to come back with a better result and the better result has come. We cannot speak any more about pressure. Anything coming now is an extra.
"We will try to win the Asian Cup, no doubt about it. But the team did what they had to do. They have made one big step forward."