1. Product Overview -EnSave is â??IMPROVER of COMBUSTION EFFICIENCY for INTERNAL COMBUSTION ENGINEâ?? operated by â??CATALYSTâ?? which is created from chemical reaction by rare earth element and precious metal such as platinum, lanthanum, &, etc. -EnSaveâ??s Catalytic Action acts to Enhance the Combustion Efficiency of the engine by leading close to perfect combustion. - As a result, EnSave realizes both â??FUEL SAVING and FUEMS SAVING - â??Double Effectâ?? at the same time, the Remarkable and Innovative Technology is under Patent Pending now. 2. Effectiveness 1) Improving Fuel Efficiency (5~20%): Save fuel cost & Profit-up 2) Engine Power up Higher Combustion Efficiency leads to Engine Power-up 3) Fumes Down: Makes Eco-friendly Green Car 4) Noise & Shaking Down: Driving Fatigue & Stress Down 5) Simple & Easy Installation: Just put EnSave into Air Cleaner Space, No A/S required