The two sides will renew their rivalry in a highly-anticipated DStv Premiership clash at FNB Stadium with little more than bragging rights at stake.
Mngqithi has urged the club's loyal supporters to "take over" Chiefs' home venue in a sea of yellow ahead of Sunday's clash.
"We are going to give this game the respect it requires," Mngqithi said. "Which is why we also feel it's very important to urge our supporters to come in numbers.
"Because this appears as maybe it's a match where we are also fighting for the calabash to see who is the boss in that space [at FNB Stadium].
"And I think that's very important for our supporters to understand that this game has got those connotations now that we have to go their mentality to take over the calabash.
"We have done very well in that space in the Champions League but now we're meeting the real owners of the stadium.
"It's a game that becomes important in that space, and the league is not important at this stage.
"But what is important is to make sure that the name of Mamelodi Sundowns is engraved in that stadium, and everybody understands that we also take it as our stadium."