1. Yenziwe ngezinto ezisezingeni eliphezulu ukuze isebenze isikhathi eside
2. I-muffler yokukhipha umoya elula futhi enamandla, eklanyelwe ukuphatha ukuqina kwezinjini ezisebenza kahle kakhulu
3. Ukukhishwa kwe-sonic okuthuthukisiwe kunikeza ukugeleza okuphezulu namandla andayo