1：What is it?
It refers to having an independent throttle body for each cylinder to control its intake airflow.
2：Function
By increasing the total area of the throttle valves, it enhances the intake airflow into the cylinders. With each throttle body having its own airflow sensor, precise control of the air-fuel ratio per cylinder is achieved. This leads to significant improvements in engine power output, particularly in the mid to high RPM range.
3：Pros and Cons
The smaller independent throttle bodies reduce weight and improve responsiveness. The increased total area of the intake valves allows the engine to intake more air, and shorter intake manifolds significantly improve intake efficiency at high RPM.
However, the use of shorter intake manifolds can result in lower intake pressure and decreased airflow velocity at lower engine speeds, leading to a loss of low-end torque. Additionally, the increased number of throttle bodies and sensors raises design and production costs, increases maintenance complexity, and poses challenges for engine tuning.
