The 31-year-old Ivory Coast international midfielder, who moved to Germany in 2014 from French side Lille, has spoken out following a lively opening 12 games in the domestic league that sees RB Leipzig lead the way, three points clear of Bayern who have to settle for second spot at the moment.
Kalou's Hertha side are only three points further back in third, level on points with Eintracht Frankfurt, while the top seven sides are separated by just nine points.
Kalou is happy to see a more competitive league this term and is hoping it continues until the end of the season.
The former Chelsea man said: "The Bundesliga is exciting because Bayern aren't as dominant as they once were.
"It is more difficult for them this season, every game other teams can play to win. It has always been entertaining but maybe it is a little bit more so now.
"Of course, everyone has a chance this year. Bayern are not dominating as we know they have, although they are great. We know we have a big chance to do something, but every team has a chance to compete. I have hope and I know that it is possible.
"Football is changing. The times when you have one team dominating are becoming less like that. You see it with FC Bayern, but also with Leicester in England. Then look at the Champions League, the teams that no one thought that Bayern would struggle against."