Hassoun Camara got his first Major League Soccer goal and Patrice Bernier scored on a penalty in the second half as the Montreal Impact downed the Houston Dynamo 4-2 on Saturday night for a second straight win since the reopening of the revamped Saputo Stadium.
Sanna Nyassi and Davy Arnaud also scored for Montreal (5-8-3), which downed the Seattle Sounders 4-1 in the expanded stadium last week.
Will Bruin, with his ninth of the season, and Brad Davis scored for Houston (5-5-5) while former Impact forward Brian Ching, booed each time he touched a ball, had an assist.
Attendance wasn't announced, but it was well short of a sellout.
Tempers flared when Houston's Adam Moffat was shown the red card after bringing Felipe Martins down hard in an act of frustration in the 73rd minute.
The Impact took the lead when Arnaud flicked a Felipe corner kick to Camara to score with a header at the far post in the 60th minute.
Only eight minutes later, Felipe went down in the penalty area after only a light shove from Geoff Cameron and a penalty kick was awarded, which Bernier converted.
In a busy first half Montreal took the lead twice before going into the intermission tied 2-2.
Nyassi got it started only four minutes in when Bernier fed Felipe Martins for a pass that split the defence to Nyassi, whose shot trickled past goalkeeper Tally Hall into the net.
Davis struck back in the 16th with a perfectly curled left-footed free kick from 22 yards that Donovan Ricketts couldn't reach.
Impact captain Arnaud, who turned 32 on Friday, headed in a Justin Mapp cross in the 21st, but with one minute left in the half, Ching slipped a pass behind the Montreal defence for Bruin to score.
The Impact selected Ching first in the expansion draft in November, but the Dynamo captain's request to return to his former club was granted in February when he was dealt for a conditional 2013 draft pick.
There were extra boos when he was substituted in the 81st minute.
The Impact remain home to face Toronto FC on Wednesday, when new designated player Marco Di Vaio is expected to make his MLS debut. Toronto has wasted two-goal leads and settled for draws in each of its last two matches, including a 3-3 tie in Houston on Wednesday.
Notes: Camara returned from a hamstring injury and started for Montreal in place of Shavar Thomas, while forward Sanna Nyassi replaced the injured Bernardo Corradi (torn ACL). Montreal was without defender Matteo Ferrari (thigh injury) and Andrew Wenger (hamstring) . . . . Houston had two changes, with Ching starting for Macoumba Kandji and Je-Vaughn Watson in for Luis Camargo. Defender Andre Hainault of Vaudreuil-Dorion, Que., played his first official game against the Impact. The Canadian international began his pro career in Montreal in 2004.