Marland Yarde was in fine form as Sale Sharks went second in the Premiership table in style against Leicester Tigers.
London Irish handled challenging conditions impressively to win at Harlequins, while champions Saracens were too good for Sale Sharks.
Exeter Chiefs rallied in the second half against Sale Sharks, but the Premiership leaders still slipped to a first defeat since November.
Leicester Tigers have moved Geordan Murphy to a director of rugby role, with Steve Borthwick joining as head coach.
Five tries in each half saw Premiership basement side Saracens make light work of thumping Worcester Warriors on Saturday.
Munster put in a monumental effort, but Leinster's defence refused to buckle at Thomond Park.
Northampton Saints defeated Gloucester in a barnstorming contest at Franklin's Gardens, while Sale Sharks overcame Bath in the Premiership.
Saracens won a fifth straight Premiership match, though they are still far behind Leicester Tigers, who were defeated by Exeter Chiefs.
Northampton Saints made it four wins from five to go top of the Premiership, while Exeter Chiefs thrashed Wasps.
Exeter Chiefs were in control at half-time, but Bristol Bears scored 20 points without reply in the second half to snatch a stunning win.
Saracens were on the brink of a second defeat in three Premiership games but they battled back to defeat London Irish.
Saracens demonstrated their strength in depth with a victory at Welford Road, outscoring Leicester Tigers by three tries to one.
Northampton Saints claimed a win over the reigning champions at Allianz Park on the opening weekend of the Premiership season.
CVC’s acquisition of a stake in Premiership Rugby Limited has prompted the Leicester Tigers board to put the club up for sale.
Geordan Murphy's abuse of officials has landed the Leicester Tigers coach a three-match ban.
Northampton Saints took the final Premiership play-off spot despite losing to Exeter, while Bath secured Champions Cup rugby next term.