London Irish's feint hopes of progressing in the Heineken Champions Cup vanished due to a pair of red cards as Stormers ran out 28-14 winners at the Gtech Community Stadium.
Stormers lock Ben-Jason Dixon insists they will stick with their defensive structure despite being caught out in their 24-17 loss to Glasgow Warriors last weekend.
The return of Angelo Davids and Junior Pokomela are among four changes to the Stormers team for Sunday's Champions Cup clash with London Irish in Brentford.
The Stormers are set to rely on their young stars as the prolific Leolin Zas has returned to Cape Town following a muscle injury against Glasgow Warriors last weekend.
Sacha Feinberg-Mngomezulu is raring to go for the Stormers following his return to fitness, and ahead of his Champions Cup debut, he has spoken of Damian Willemse's impact on his development.
Stormers head coach John Dobson says his side had a bad day at the office against an in-form Glasgow Warriors side in the United Rugby Championship (URC) on Sunday.