The engine of your Hummer H3 is a complex part that needs the presence of various conditions in order to function to its full potential. If you are familiar with the term engine swirl then you probably have an Airaid Throttle Body Spacer. The whole design concept of this product revolves around the generation of combustion swirl. What exactly is this? An engine swirl is achieved if there is a greater quantity of air and fuel mixture inside the combustion chamber to attain an increase in burning capacity. The Airaid Throttle Body Spacer A862005851 can help you accomplish this with the presence of machine generated helix in the bores, which pulls in more air. As the air enters the engine, it passes through the helix ridges and swirl at high speed. The whirling air is sucked into the cylinder’s combustion chambers and continues with its movement until fuel is combined to attain the right air-fuel ratio. Afterwards the plug fires and an increased burning process are achieved. Your Hummer can now generate more engine power, lesser fuel consumption and lower emissions. The 2004-2006 Hummer H3 Throttle Body Spacer from Airaid maximizes air inflow and outflow to give your ride a power boost. You can buy the Airaid throttle body spacer on our online store. Our web site is user-friendly and easy-to-navigate, so you can access it anytime you want. We also have a toll-free phone line where you can place your orders or place questions regarding our products. It is our motto to provide excellent customer service.