Four hundred tickets were sold yesterday and there have been more than 6000 sold overall already.
A big home crowd will give the Magpies a boost in their last defence of the Ranfurly Shield, which they've retained through three challenges since August.
Hawke's Bay may need the extra support after the Manawatu Turbos leapfrogged them into first spot in the championship with a comprehensive 29-3 win last Sunday.
"We're determined to pack the park. It's our last home game before we lock up the shield. It's imperative we have a big home crowd when the Stags run out on Saturday afternoon."
The weather forecast for Napier on game day is mainly fine with a high of 17C and northeasterly winds, according to the MetService.