Ulster secured their place in the quarter-finals of the Heineken Cup for the first time in 11 years with a bonus-point 43-6 victory over Aironi at Stadio Luigi Zaffanella.
Number eight Pedrie Wannenburg scored twice in a man-of-the-match display while tries from Andrew Trimble, Chris Henry and a penalty try wrapped up a bonus point before Simon Danielli capped the victory with a late score.
Fly-half Ian Humphreys also booted 13 points but the win was not enough to clinch top spot in Pool Four following a bonus-point victory for Biarritz over Bath.
Ulster finished level on 22 points with the French club but missed out due to an inferior head-to-head record.
However, this win did secure one of two places in the last eight for best runners-up, the first time Ulster have reached the knock-out stage of the Heineken Cup since they won the trophy back in 1999.