Airaid said the PowerAid throttle body spacer probably would not change the peak horsepower of our Jeep. That’s not the part’s job. The throttle body spacer does what we all need by adding low-end torque. This is the “power” we all use whether driving down the road towing, or during most off-road driving. That was reflected in the dyno numbers, where the spacer delivered almost 20 lb-ft at 3,200 rpm. Here is a tip for installing the rubber O-ring on the throttle body. Airaid engineer Donovan Shafer used a 3⁄8-inch socket extension’s rounded shaft to press the O-ring into the machined grove. This ensures a leak-free fit.