He and his friends often look for voice boxes that he can use. A running gag throughout the movie involves him finding and trying to use different voice boxes, then acting out a pop culture reference for each one. For example, when hearing about Rodney's talent, he assumes a voice box and says "The Force is strong in this one" in Darth Vader's voice. In the end, Diesel receives a brand-new voice box from Bigweld, and starts singing like James Brown. He also wears shoes.