Ulster managed to maintain their 100 per cent record in the RaboDirect Pro12 with a 16-15 victory in Italy.
A week after an unimpressive success over bottom club Zebre, Mark Anscombe's side turned an interval deficit into a narrow victory over Benetton Treviso.
Peter Nelson's try and consistent kicking from Niall O'Connor enabled them to prevail by a single point.
