Tasman made it five victories out of five in the ITM Cup as they pulled away from Wellington in the second-half, triumphing 36-17 at Westpac Stadium.
It was 6-5 to the Makos at the break as Marty Banks' two penalty goals were responded to when Frae Wilson crossed for the home side on 24 minutes.
Despite the Lions going in front two minutes after the interval when Jackson Garden-Bachop scored, the second-half was all about a lethal Tasman side.
Tries from Pete Samu, Kieron Fonotia, Marco Kotze and Shane Christie late on secured the try bonus-point as they showed their superior class in all areas.
Wellington would score a consolation try through wing Wes Goosen on 80 minutes, but the Lions were well beaten by the Premiership pace-setters.
Tries: Wilson, Garden-Bachop, Goosen
Tries: Samu, Fonotia, Kotze, Christie
Con: Banks 2
Pen: Banks 2, Havili 2
Wellington: 15 Cory Jane, 14 Joe Hill, 13 Tomasi Alosio, 12 Shaun Treeby, 11 Wes Goosen, 10 Jonny Bentley, 9 Frae Wilson, 8 Brad Shields, 7 Ardie Savea, 6 Vaea Fifita, 5 Hoani Matenga, 4 Jeremy Thrush, 3 Jeffery To'omaga-Allen, 2 Leni Apisai, 1 Reggie Goodes.
Replacements: 16 Hunter Prescott, 17 Vince Sakaria, 18 Joe Apikotoa, 19 Adam Hill, 20 Greg Foe, 21 Tomasi Palu, 22 Jackson Garden-Bachop, 23 Marvin Karawana.
Tasman: 15 Robbie Malneek, 14 Viliami Lolohea, 13 Kieron Fonotia, 12 David Havili, 11 Mitchell Scott, 10 Marty Banks, 9 Billy Guyton, 8 Liam Squire, 7 Shane Christie, 6 Pete Samu, 5 Joe Wheeler, 4 Alex Ainley, 3 Ross Geldenhuys, 2 Quentin MacDonald, 1 Tim Perry.
Replacements: 16 Jesse MacDonald, 17 Suia Halanukonuka, 18 Jake Stafford-Wood, 19 Marco Kotze, 20 Vernon Fredericks; 21 Jimmy Cowan, 22 Trent Renata, 23 Kade Poki.
Referee: Kane McBride