Improving airflow in and out of your engine is a proven way to boost power. Factory air intake systems restrict flow, so we recommend starting with a performance air intake system. This will increase airflow from the air filter up to the throttle body, which is the next restriction in line. Replacing the OE throttle body with one of our performance units will not only further enhance airflow for a gain in horsepower, but you’ll also get better throttle response as well.
The throttle body houses one or two plates that open to allow airflow into your engine when you step on the accelerator. Airflow through the factory throttle body is OK when the engine is unmodified and in its original state of tune. But when you’re upgrading airflow for performance, it can be the bottleneck that’s keeping your engine from making all the power it’s capable of. Installing a throttle body with a larger bore will let your engine breathe so it’s more powerful, efficient, and responsive.
We offer throttle bodies for most popular vehicle applications and engines in a range of sizes, so you can increase airflow according to your engine’s state of tune. Mildly modified engines will definitely benefit from an upgrade in throttle body size, but one that is too big can negatively affect throttle response. Go for the largest size throttle body only if your engine is highly modified, such as with a forced induction system. Our selection includes throttle bodies for newer vehicles with Electronic Throttle Control (ETC), also known as “drive-by-wire”, as well as traditional cable operated systems.