The province will be looking to spoil the Scarlets' celebrations in their new home however, as they will be hoping to continue a two-year winning run against the Welsh region.
The second-placed Ospreys are away from home on Friday night, travelling to Edinburgh and looking for an away Scottish double after beating Glasgow Warriors in September.
The crucial game, from an Irish perspective, is the Friday clash of third-from-bottom Ulster and 10th-placed Connacht at Ravenhill.
The Ulstermen will be looking to the record books for inspiration as the westerners have not won in Belfast for 48 years.
Friday's fourth game is Glasgow Warriors versus Cardiff Blues - Glasgow will be aiming to keep pace with the top two, while the Blues will be looking to keep an advantage over the fourth-placed Welsh region, the Newport Gwent Dragons.
The Dragons themselves are in action on Saturday night when they visit a Leinster side hoping for a return to winning ways after a run of three league defeats.
MAGNERS LEAGUE - ROUND 7 FIXTURES:
Friday, November 28 -
Scarlets v Munster, Parc y Scarlets, 7.05pm (live BBC Wales/Setanta Sports Ireland)
Edinburgh v Ospreys, Murrayfield, 7.30pm
Glasgow Warriors v Cardiff Blues, Firhill Arena, 7.30pm
Ulster v Connacht, Ravenhill, 7.30pm (live Setanta Sports 2)
Saturday, November 29 -
Leinster v Newport Gwent Dragons, The RDS, 5.30pm (live Setanta Sports Ireland/S4C)