The French side and their star backline stormed past six-time winners and holders Toulouse in the semi-finals while 2000 champions Northampton stunned Irish powerhouses Leinster in the previous round.
Four of Phil Dowson’s Northampton squad — rising star flanker Henry Pollock, fly-half Fin Smith, scrum-half Alex Mitchell and winger Tommy Freeman — have been named in the Lions’ squad for this summer’s tour of Australia.
“We are going to go flying into it with loads of energy, loads of heart, we’re going to work incredibly hard and when it goes well, we’re going to celebrate and when it goes wrong, we’re going to pick each other up,” Dowson told the BBC this week.
“We’re going to keep doing that for 80 minutes and then look up at the scoreboard and see where we’re at,” the former Saints back-rower added.
Bordeaux-Begles have reached their maiden Champions Cup final having been founded following a merger between Bordeaux and suburban town Begles in 2006.
They tasted defeat in their only other previous major final, losing 59-3 to Toulouse in the Top 14 last season despite the involvement of supersonic wingers Louis Bielle-Biarrey and Damian Penaud as well as influential fly-half Matthieu Jalibert.
“There are things we can control better compared to what we did last year,” head coach Yannick Bru told reporters on Tuesday.
“We’re happy to be at another match that is decisive for the club, with all our capabilities,” the former France and Toulouse hooker added.
Dowson has an injury-hit squad with doubts over four regulars including Fijian lock Temo Mayanavanua and full-back James Ramm.
South African No 8 Juarno Augustus has already been ruled out with an issue picked up in training.
“You look at the quality of their squad, and we’re suffering with some long-term injuries,” Dowson said.
“Just on those factors alone we’re probably underdogs.”
‘Fast and brave’