The Toro Z Master� Professional 6000 EFI Series is Toro�s most advanced zero-turning radius mower. Everything added to this series was developed with the landscape professional in mind. This model features 183 cm cutting deck, 999 cc Kohler� Electronic Fuel Injection (EFI) engine with Toro�s exclusive, new Next Gen Horizon� Technology system and electronic governor (E-Gov) to provide maximum productivity with reduced carbon footprint and at the same time increase fuel efficiency. It�s technology that refined the Z Master� to make a great commercial mower even better.