The treble winners ran out comfortable victors during the Spanish coach's first game in charge, with several youngsters handed their chances to impress.
The Bavarians hosted their Wildenau-based supporters and were already 3-0 up in the first period, thanks to goals from Thomas Muller as well as youth prospects Oliver Markoutz and Vladimir Rankovic.
Die Roten opened the floodgates in the second half as Patrick Weihrauch, Julian Green, Franck Ribery, Mitchell Weiser and Toni Kroos struck.
Germany Under-19 international Weihrauch will have done his first team prospects no harm after his four-goal haul, while fellow starlet Green, who was born in Florida, impressed with his display and subsequent hat trick.
Guardiola will also be pleased to welcome back Kroos, after the playmaker missed the tail end of last season through injury.
The 23-year-old turned out beside Ribery and Jerome Boateng in the second half.