Mike Haley, Alex Kendellen, Shay McCarthy, Tony Butler, Jack Daly, Neil Cronin and Stephen Kiely were the try-scorers on a thrilling night in London.
Munster ran out 43-35 winners over Harlequins following a hugely entertaining clash at the Twickenham Stoop on Friday night.
Mike Haley, Alex Kendellen, Shay McCarthy, Tony Butler, Jack Daly, Neil Cronin and Stephen Kiely were the try-scorers on a thrilling night in London.
Haley dotted down for the first try after seven minutes, before Kendellen broke clear down the blindside and powered through minutes later.
The hosts hit back on 25 minutes after Jack Walker broke off a rolling maul to score with Will Edwards converting.
From the restart, Academy winger McCarthy chased hard and caught Quins napping as he charged down the clearance and showed good composure to score in the left corner.
The final score of an exciting first half went to Harlequins as Edwards scored under the posts off a slick backline move, converting his own try to make the scores 19-14 at the break.
Harlequins went in front within a minute of the restart but tries from Butler and Daly put Munster firmly back in control at 31-21.
Butler was on hand to convert following a Cronin try, the score now stretched out to 38-21, and the Red Army continued to power to the end as Kiely found the seventh try 15 minutes from time.
That score put Munster 43-21 ahead , and Graham Rowntree’s men held on for the victory despite two late Harlequins tries.