Vararam LS1 Velocity Stack

The VR velocity stack was designed to reshape the factory throttle-body in order to boost air flow velocity at each given RPM. The overall shape of each VR velocity stack has undergone some of the most intensive airflow research that Vararam has ever done to produce the best overall shape for each engine's airflow requirements. Designed to produce power and torque throughout the RPM range, Increases throttle response, Increases gas mileage, Increases acceleration, Installs in just minutes, A patent-pending design, Eliminates the need for a ported throttle-body by smoothing and reshaping the throttle-body entrance to increase the incoming air velocity at each given RPM