Big Bore Throttle Body - Black - 51 mm - Twin Cam

Includes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and seals Flow bench-tested and dyno-proven to deliver increased airflow, horsepower and torque Brass throttle blade resists deflection, which helps maintain throttle position accuracy Equipped with a sealed double roller bearing for smooth throttle operation Compatible with all factory OEM electronics, including cruise control Fully machined and ported internally for unparalleled flow Stock bolt pattern and air cleaner opening Made in USA