Debutant David Kang’atua also announced his arrival at the Coastal City from Sweden with a goal away in Narok.
Bandari was playing under new coach, Ken Odhiambo, who took over from Paul Nkata last December and the three points will be a morale booster to both the players and the bench as they launched their title campaign on a right note.
Wambani gave Bandari the lead just 11 minutes into the game with a beautiful placement after sneaking past the defenders before he managed to bang home his second five minutes later.
Match-hero, Wambua then handed over the scoring boots to King’atua, who hit Bandari’s third in the second half for a convincing win over hosts Sofapaka at Narok Stadium.
The visitors were presented with a golden opportunity to triple their advantage in the 45 minute, but Keegan Ndemi directed his shot way off the target with a begging empty net on sight after he was laid off by Abdalla Hassan.
With a comfortable lead and as the clock ticked toward the final whistle, coach Odhiambo introduced Wycliffe Ochomo in place of Shaban Kenga.
Bandari starting XI: Farouk Shikalo, Nicholas Meja, Fred Nkata, Bernard Odhiambo, Felly Mulumba, Collins Agade, Keegan Ndemi, Anthony Wambani, Shaban Kenga, David King’atua and Hassan Abdalla.
Reserves: Joseph Okoth, Mohammed Siraj, Hassan Iddi, Wilberforce Lugogo, Joshua Oyoo, Wycliffe Ochomo and John Avire.
Sofapaka starting XI: Mathias Kigonya, Willis Ouma, Yusuf Mohammed, Musa Omar, Rodgers Aloro, Kilume Mohammed, Kevin Kimani, Teddy Osok, Umaru Kasumba, Eli Kasieche and Stephen Waruru.
Reserves: Emmanuel Opiyo, Vitalis Akumu, Kennedy Oduor, Michael Oduor, Kepha Aswani and Ezekiel Okare.