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            AEM Throttle Body Spacer

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            More air equals more power, right? There are a lot of great ways to increase your power by adding fuel or advancing the timing, but all these changes are for naught without a corresponding increase in the amount of air that you can inject into the cylinders. For fuel to be able to burn properly, it must be at a precise stoichiometric ratio, 14.7 to 1 air to fuel. That means that any small increase in fuel delivery must be matched by a more significant increase in air delivery. There are a lot of ways to make more oxygen available to the engine, some more expensive than others. A great and often neglected way to increase your air is to add an AEM throttle body spacer. The AEM throttle body spacer is designed to increase the volume of the throttle body, which is a choke point in the air system. With a greater volume of air in the throttle body, your engine will be more responsive and there will always be more air available to be drawn in to the system. The AEM throttle body spacers are an inexpensive way to really give you a lot of power gains. Like all AEM products, the AEM throttle body spacers are tuned and manufactured using the best materials and design methods. Auto parts customers definitely deserve quality information and support when they buy high-quality auto parts. Because you deserve that, we run a 24/7/365 customer assistance bureau to help you with your calls. To sweeten the deal, all parts come with 100% free shipping for all orders $50 and up. If you spot a lower price elsewhere, call us - we always beat any price advertised elsewhere.

            AEM Throttle Body Spacer Review

            Date Published:
            • Performance 3.5
            • Ease to Use/Intallation 5
            • Quality 5
            • Price 4
            Overall Rating 4.4

            For those looking for a cheap, alternative way to improve engine performance, getting a throttle body spacer is often one of the first options considered by many. Basically a 1-inch thick steel panel, the throttle body spacer is said to increase the amount of cold air drawn into the engine by swirling or directing air flow into the intake manifold. This increased volume of cold air, in turn, is said to increase horsepower, torque, and overall fuel economy.

            Because of the supposed benefits provided by these add-ons, many aftermarket brands have included throttle body spacers in their product line-ups. One popular brand that is offering spacers right now is AEM. Known for its performance air intake parts, AEM offers throttle body spacers as part of its cold air intake systems. In this review, we got a set of AEM throttle body spacers and put it to the test.


            • Designed for use with AEM Brute Force air intake systems
            • Powder coated steel construction
            • TIG-welded fittings and brackets
            • Kit includes mounting hardware and instruction manual
            • Backed by limited AEM lifetime warranty


            • Spacer is highly resistant to heat. Each AEM throttle body spacer is specially treated to withstand high temperatures, making it an effective heat shield for the air intake components.
            • Comes with all the necessary hardware needed to install the spacer onto the air intake. Keep in mind, however, that this only applies to AEM air intakes systems, so if you have a stock air intake or one from a different brand, you might need to make some considerable adjustments in order to install the spacer.
            • Comes with a warranty. AEM is well known for its robust warranty program, so we're delighted that the spacer is also covered by its warranty.


            • The spacer is not compatible with all air intakes. As we have mentioned above, the AEM throttle body spacer is designed with AEM's air intake systems in mind and may not work with those from other brands. In fact, this air intake may even degrade the performance of the air intake. So make sure to check for compatibility first before purchasing this spacer.

            The verdict

            With its heat-resistant properties, the AEM throttle body spacer helps keep cool air circulating into the engine and at the same time protect the filter and other air intake components from the heat emanating from the engine.

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