The Turbos led 6-3 at the break. Their forward pack was industrious and presented a stonewall defence, but they could not make optimal use of possession and were hemmed into their own territory, partly through raising referee Michael Lash's ire.
Openside flanker Callum Gibbins led by example for Manawatu, and a Super Rugby contract surely awaits this unheralded workhorse.
Steelers flanker Dan Hyatt was prominent in the first half, where Counties Manukau enjoyed the lion's share of the ball and field position. But they weren't able to do enough with it, and kept making mistakes which compounded their difficulties. Their backs were not the slick, freewheelers we have come to know and love, looking almost ponderous at times.
No less than three of the Steelers hoisted 50 games for the union in this one, captain Tim Nanai-Williams, Kane Hancy and Ahsee Tuala.
This was Manawatu's first win over Counties Manukau since 2009. It was well-earned, coming just four days after beating Bay of Plenty.
Manawatu (Jason Emery, Jade Te Rure tries; Te Rure 2 con, 2 pen, Otere Black 2 pen)
Counties Manukau (Onosa'i Auva'a try; Ahsee Tuala con, Michael Stanley pen) HT: 6-3 Manawatu
Key moments
Bad omens
The auspices did not bode well when Steelers lock Jimmy Tupou dropped the kickoff, from which the Turbos gleefully took three points.
Petone pairing
The respective coaches Jason O'Halloran and Tana Umaga locked horns after a playing career which saw them appear together for Petone, Wellington and the Hurricanes.