Brumbies coach Stephen Larkham rated his team's performance against the Stormers on Saturday as "one of the best."
The Australian visitors dominated the South African conference winners to outscore their hosts six tries to one in a 39-19 victory in Cape Town.
Winger Joe Tomane scored three tries but Larkham reserved special praise for his forward pack.
"That was one of the best performances we've had over the last couple of years," said Larkham.
"We were really embarrassed by our scrummaging in our last game over here [during the regular season] and we turned that around.
"It was a fantastic night by the forward pack. At defensive lineout time, I thought we were outstanding.
"To win a qualifying final at Newlands by 20 points is pretty special.
"There was good presence at the breakdown. Defensively the forwards were outstanding.
"We held them out on our line for while. David Pocock and Scott Fardy were really good. The guys were constantly putting pressure on the Stormers.
"It was comfortable watching our defence from the coaches box."
Larkham said that he thought winger Henry Speight was "very unlucky" to be shown a red card and hinted that he hoped for a favourable hearing on Sunday.
The Brumbies must now travel to Wellington to face the table-topping Hurricanes in the semi-finals next week but Larkham noted they are not in unknown territory.
"We've obviously got a lot of travel ahead of us next week, but we'll dust ourselves off tomorrow and get on with it," he said.
"We beat the Bulls in South Africa in 2013 before heading off to face the Chiefs in New Zealand in the final, so we've got a bit of experience there.
"We need to prioritise what we train and make sure the guys recover."
by Ross Hastie at Newlands