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The Original Big Bore Throttle Body!
Throttle Bodies, Intakes and Air Cleaners.
We design and manufacture a wide variety of throttle bodies, intakes and air cleaners to complete your EFI build.
Our units provide a crisp throttle response and are flow bench tested for unparalleled dyno-proven performance to increase airflow and to allow for substantial increases in horsepower and torque.
Each HPI big bore throttle body is fully machined and ported internally for unmatched flow compared to other throttle body manufacturers.
All of our throttle bodies feature a stainless steel shaft, precision sealed roller shaft/bearing assembly and satin finish.
Horsepower Inc. throttle bodies feature factory bolt patterns and are fully compatible with stock components for easy installation. Plus HPI throttle bodies are offered in many bore sizes that feature extended deck lengths and port configurations to match any head.