Streich said his side were forced to defend "more than ever before" against Bayern but added that "there is no other way to face Bayern at the moment".
Freiburg will return to their usual style of play tomorrow, but Streich believes it is going to be another serious test for his side.
"They are stable, tactically strong, aggressive and also versatile," he said.
"At the moment, Augsburg are a really good Bundesliga team and the 21 points they have got in the second half of the season reflect their performances.
"They are a highly-dangerous side who are going to come here determined and very motivated, like we did in the second half of last season.
"Therefore, I expect a very interesting and very intensive game."
Augsburg showed their full potential a week ago with a 3-0 win over Stuttgart which took them the closest they have been all season to safety.
Only goal difference currently separates them from a place above the drop zone, which they hope to claim this weekend.
"We are focused on success," said their coach Markus Weinzierl. "Safety is the big goal we have before us and even if we are the outsiders in my eyes, I believe we can get the points.
"We want to stay in the league, no matter how we do it."
Weinzierl is without the suspended Matthias Ostrzolek while Ja-Cheol Koo is still injured.
Jan Rosenthal and Julian Schuster are both available for Freiburg after missing the trip to Munich through suspension and injury respectively.