These and other innovative technologies allow the Renesis to achieve 49% higher output and reduced fuel consumption and emissions. Regarding hydrocarbon (HC) emission characteristics of the RENESIS, the use of the side exhaust port allowed for about 35 – 50% HC reduction compared to the 13B-REW with the peripheral exhaust port. With this reduction, the RENESIS vehicle meets USA LEV-II (LEV). The Renesis won International Engine of the Year and Best New Engine awards 2003 and also holds the "2.5 to 3 liter" (note that the engine is designated as a 1.3–litre by Mazda) size award for 2003 and 2004, where it is considered a 2.6 L engine, but only for the matter of giving awards. This is because a 2-rotor wankel with chambers displaces the same volume in one output shaft rotation as that of a 2.6L four-stroke piston engine. Finally, it was on the Ward's 10 Best Engines list for 2004 and 2005.