Duvenage and Louw brought in for Chiefs
Scrumhalf Jano Vermaak has been ruled out after leaving the field with concussion in the 53-10 victory against the Cheetahs at Newlands last week.
He is replaced by the experienced Dewaldt Duvenage, with Justin Phillips providing cover on the replacements bench.
The only change is to the forward pack, where a fit-again Wilco Louw take his place at tighthead prop alongside hooker Bongi Mbonambi, who earns his 50th Super Rugby cap.
The changes amongst the replacements see Phillips and lock Jan de Klerk get an opportunity, whilst prop Frans Malherbe is also set to provide impact when called upon.
Stormers coach Robbie Fleck said that the players are looking forward to standing together for what should be an intense match between two unbeaten sides.
"The players have all put in a lot of hard work and we cannot wait to test ourselves against the Chiefs this weekend," Fleck said.
"There should be an incredible atmosphere at Newlands on Saturday, so we are very excited about what lies ahead," he added.
Stormers: 15 Sarel Marais, 14 Cheslin Kolbe, 13 EW Viljoen, 12 Dan du Plessis, 11 Dillyn Leyds, 10 Robert du Preez, 9 Dewaldt Duvenage, 8 Sikhumbuzo Notshe, 7 Siya Kolisi (captain), 6 Cobus Wiese, 5 Pieter-Steph du Toit, 4 Eben Etzebeth, 3 Wilco Louw, 2 Bongi Mbonambi, 1 Jacobus Janse van Rensburg.
Replacements: 16 Ramone Samuels, 17 Oliver Kebble, 18 Frans Malherbe, 19 Jan de Klerk, 20 Nizaam Carr, 21 Justin Phillips, 22 Kurt Coleman, 23 Dan Kriel.
Date: Saturday, April 8
Venue: Newlands, Cape Town
Kick-off: 17.15 (15.15 GMT; 03.15 NZ Time Sunday, April 9)
Referee: Jaco Peyper (South Africa)
Assistant referees: Jaco van Heerden (South Africa), Cwengile Jadezweni (South Africa)
TMO: Shaun Veldsman (South Africa)
