The throttle body spacer goes in the fuel/air intake area of your engine, and can be installed in under an hour using common tools. For older vehicles with carburetors, this component simply increased the volume of the fuel/air mixture, or allowed for a more dispersed fuel spray, which could be burned more rapidly. Today, most vehicles use a fuel injection system. Modern throttle body spacers are designed to enlarge the air entry passageways and allow for a greater and more forceful amount of air. This means your engine does not have to work as hard to get air in, and lets that "found" power get used where you want it most: down to your wheels.

The installation of a throttle body spacer can add up to 25 ft lbs of torque and up to 18 HP. In addition, the throttle body spacer improves your fuel economy and nets gains of up to 4 miles per gallon. Adding a throttle body spacer to your engine is a fast, inexpensive performance modification that will save you money on gas as it gives you more power.