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To increase the power in hummer then you will have to install the Hummer performance chip so that you can be able to competition with the world and its technological changes with new model coming up each having their distinctive values Hummer performance chip is their to improve throttle response in your hummer this is done possible because after installing the hummer performance chip you will notice that you car has acquired a horsepower and torque enabling it to cover a mileage due to the increase of speed that your hummer is able to go, installation of this chip does not require a mechanic it comes with a manual that you can read through to get started when fixing the ECU in your car. The hummer performing chip is an upgrade in your car. Get your hummer fixed and you will notice the difference one being that you will spend less when it comes to fuel consumption.