Munster coach Declan Kidney admitted their game against Llanelli Scarlets was "all about the win" and to win back-to-back games for the first time against a side of their quality was "a great achievement".
He said: "Llanelli kept the ball well in the first half but we made them work hard. It was a case of wearing them down in the first half and that helped us later on when we gained a few yards several times.
"I was worried at half-time though. Our dressing room at half-time was very subdued despite our lead. We managed to get three turnovers from their lineouts and that was a big boost.
"I'm not disappointed at not earning a bonus point. We got four and that was an extraordinary achievement. We can always improve and we will look at our performance tomorrow (Monday) and Tuesday."
Looking ahead to the Irish province's fifth pool game away to Clermont Auvergne, Kidney added: "It is a hell of a place to have to go to. But 10 days ago we might have had nothing to play for and these two wins have ensured we will have a great deal to play for next month."