Keihin Velocity Stack 35-41mm.
Velocity stacks are shaped based on the mathematically calculated ideal gas intake curve. They work by having the widest mouth for the diameter given, and taper inwards to regulate airflow and gradually increase air velocity and density as the air gets closer to the inlet valve. The effect of adding a velocity stack is pronounced. You’ll notice an increase in throttle response, induction sound, and airflow to the engine. They also look cool as hell.
Features of this item:
– Increase in air density and velocity
– Increase in throttle response
– Increase in airflow to the engine
– Pronounced induction sound
Dimensions as follows:
- 35-41mm inlet opening