Local rival VfB Stuttgart paid Kickers 750,000 Deutsche Mark to team him up with their Bundesliga squad.

In Hanover they faced France in November 1980 and Allgöwer was having a bright debut, playing on the right in midfield and cementing his ambitions.

Subsequent to him taking part regularly for Germany on their way to the 1982 FIFA World Cup, his participation in that tournament was expected.

Franz Beckenbauer, successor of Jupp Derwall at the helm of the German team in 1984, attempted to lure the strong shooting player out of that retirement, but Beckenbauer had to wait until October 1985 to see Allgöwer return for the World Cup qualifier against Portugal (0–1), which ironically took place at VfB Stuttgart's Neckarstadion.

In 1989, the powerful free-kick specialist was part of the Stuttgart XI with Guido Buchwald and Jürgen Klinsmann that got defeated by Diego Maradona's SSC Napoli in the UEFA Cup final.