Chris Kunitz started Pittsburgh's third-period surge with his 18th goal of the season and Sutter beat Boston's Anton Khudobin twice in less than four minutes, including the game-winner with 2:03 remaining.
Marc-Andre Fleury stopped 14 shots for the Penguins, who broke loose late against the NHL's best defensive team.
Zdeno Chara and Tyler Seguin scored first-period goals for the Bruins. Khudobin made 31 saves and the Bruins kept Pittsburgh's high-powered offence in check until the final minutes of a matchup between two of the Eastern Conference's best teams.
I mean, hockey had to change the rules because of Marty, and that's impressive. I got two Stanley Cup rings because of the guy. Look at the banners of [Scott Niedermayer, Scott Stevens and Ken Daneyko] and Marty is right up there when you think about the New Jersey Devils; he was part of the core group and he'll go down as one of the greatest goalies ever.
— New Jersey Devils center Scott Gomez on former teammate Martin Brodeur, who will announce his retirement Thursday