Effuel ECO OBD2 is a fuel and gas-cost saver device introduced to customers who wish to cut down on their gas bill significantly. As per its official manufacturing company, Effuel ECO OBD2 chip can take control over the ECU of your car and optimize it so that it can run more efficiently while consuming lesser amounts of fuel. As a result, consumers can cover more distance in less gas, hence, saving their hard-earned money. One of the most interesting features that the Effuel device possesses is that every change that it’s capable of inducing in the engine of your car is reversible. This chip is compact in size and can be installed and removed easily by the user himself.