Felix Jones, Doug Howlett, Denis Leamy and Ronan O’Gara are the only four players to keep their places in the side that lined out against Harlequins last weekend.
Johnny O’Connor, Brett Wilkinson John Muldoon, Gavin Duffy and Mike McCarthy all start for Connacht.
Ulster have included Tom Court and Declan Fitzpatrick in their front row for tomorrow’s encounter with the Dragons.
Stephen Ferris , Paddy Wallace, Andrew Trimble and BJ Botha all miss out through injury.
A win could give Ulster a home semi final if Leinster lose to Glasgow.
Leinster have made several changes to their team for tomorrow’s Magners league meeting with the Glasgow Warriors at the RDS.
Fergus Mc Fadden starts on the wing with Eoin O’Malley replacing Brian O’Drisscoll in the centre, Ian Madigan is at out half and is partnered by Isaac Boss.
Prop Jack Mc Grath makes his sixth apperance of the league beside Richardt Strauss and Stan Wright while Devin Toner partners Kevin Mc Laughlin in the second row, number 8 Jamie Heaslip captains the side.
A win guarantee’s a home semi final for the province.
Tomas O’Leary is back in the Munster side for their clash with Connacht, the scrum half has been missing since the Six Natiosn due to an eye injury.