2016 Kawasaki Mule Pro-Fx Eps Le Dark Royal Red, As the newest edition to the MULE family, the MULE PRO-FX is our fastest, most powerful, three-passenger MULE side x side ever. Built on the same rugged platform as the PRO-FXT, this revolutionary side x side also comes equipped with the largest cargo bed in its class. To top it off, the PRO-FX is backed by the Kawasaki Strong 3-Year Limited Warranty.