Lopetegui insists they'll respect the Champions League winners, but won't be intimidated as Europa League holders.
He said, "Disputing a European Super Cup does not happen every day and even less against a rival as great as Bayern, who won their domestic championship, their national cup and the European Cup brilliantly.
"It is a great team with a lot of individual talent. They have a coach who deserves a lot of credit for the way he has managed the squad and changed its fortunes by giving it a strong identity as well as a lot of importance on teamwork.
"It is about facing the best team in the world at the moment. We are not going to throw in the towel. We have a lot of respect and admiration for this team, but we are also very proud, ambitious and passionate. We intend to meet with the desire to give a good image of ourselves. It will not be easy, but that is what we obviously hope."