Munster clinched a home Heineken Cup quarter-final spot as they hit last season's runners-up Northampton Saints for a record 51 points in a 51-36 result.
Simon Zebo raced over for a hat-trick of tries to provide the perfect ending to a week in which he was invited to train with the Irish Six Nations squad, and Ronan O'Gara kicked 24 points as the two-times champions saved their best for last.
Having clinched the pool the previous weekend, this game at stadium:mk was all about securing a home draw. They did that and more as they overtook reigning champions Leinster to take the top seed position.
BJ Botha and Johne Murphy also crossed over for Munster, with Ian Keatley's conversion taking the score over 50 points, while Ryan Lamb kicked 19 points for Saints who scored a last-minute consolation try though Scott Armstrong which Stephen Myler converted.