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Grassroots Performance LS/VORTEC series throttle body use the 4-bolt mount pattern. A simple proven design that increases airflow with a bigger opening, also known as "BIG MOUTH". Improved horsepower and torque from 2500rpm through redline. OEM fitment for Throttle Position Sensor (TPS) and Idle Air Control Sensor (IACS). 

*Fits OEM Manifolds with 4-bolt flange
*Cable Throttle

Available sizes 92mm and 102mm
Available colours are anodized black and polished.

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