Tries from Matt Proctor and Andre Taylor were not enough for the Hurricanes as they went down 18-16 to the Stormers in a hard-fought clash in Palmerston North.
Both teams scored two tries apiece but Hurricanes fly-half Beauden Barrett missed four of his six shots at goal in the breezy conditions, while Stormers fullback Joe Pietersen successfully kicked three of his five and that in the end proved to be the difference in the tightly-contested battle.
Debutant Proctor and Taylor scored either side of the break for the home side, while Michael Rhodes and Gio Aplon did likewise for the Stormers in a match where chances were at a premium.
Elsewhere, the Reds completed a sweep of New Zealand sides in this year's Super Rugby competition with a tense 12-11 win over the Blues at Suncorp Stadium.
After seeing off the Hurricanes, Highlanders and Chiefs in earlier rounds, the Reds edged passed the Blues thanks to a solitary Quade Cooper penalty in an otherwise scoreless second half.
Despite enjoying just 43 per cent possession and remaining tryless, the home side earned their victory thanks to some gritty defending and good use of the football when they did get a hold of it.
Fly-half Cooper led a sharp attacking display from the Reds, but the only try of the match came from Blues inside centre Jackson Willison, who broke through the line to touch down in the corner with 31 minutes gone.