Two second half tries from Steven Shingler and replacement Marlan Yard helped London Irish to a 34-10 win over Munster in front of a 5294 crowd at Musgrave Park.
Munster trailed 13-3 at half time.
Topsy Ojo's sored the first try, it was started in mid-field by Tomas O'Leary who looped around his outhalf to start the move that ended with Tom Homer and Jonathan Joseph invloved in setting Ojo on his way.
Shingler had given his side the lead with a 17th minute penalty and he added a second in the 31st minute before Munster got on the board with an Ian Keatley penalty in added time of the opening half.
Munster only try came in added time from Sean Henry with Scott Deasy addding the extras.
