The Super Namekian Powers Up! Piccolo vs. Android 17! (This is the Power of a Super-Namekian! #17 vs. Piccolo!) is the seventy-third episode of Dragon Ball Z Kai. Its Japanese air date was September 19, 2010. Its American air date was July 14, 2011.
Bulma is hard at work trying to figure out Dr. Gero's prints. Meanwhile, Piccolo and Android 17 are fighting each other. After Android 17 gets serious it turns out that he and Piccolo are evenly matched. Cell senses the two fighting and starts making his way towards them stating that his power level is now higher than theirs. Krillin, and the others on a nearby island, receive a call from Bulma saying that she has completed the switch to shut down the Androids and starts bringing it over. Android 17 states that since his stamina will never drop, he will be the victor of the battle. However, Cell arrives at the scene of the battle leaving Piccolo shocked. Meanwhile, Goku and Gohan are still waiting for Vegeta and Future Trunks to come out of the Hyperbolic Time Chamber.