Borussia Dortmund vs Bayern prediction (Over/Under)

German Supercup, game will be played in Munich, Bayern's home arena, so they are rated as favorites and rightly so, even beside that fact, they are simply the better team nowadays, but I can't trust their defense to go with their direct win, in latest game vs Hoffenheim defensively they looked very poor. Fun, but the same can be said about Dortmund, which lost in Augsburg. Anyway, that's only good, cause quality of offense of both cannot be questioned and such bad defensive performances can only be better to expect goals. Cheers