Velocity stacks for Aprilia RS 660/TUONO 660.
These velocity stacks we have been developed for the Aprilia RS 660 & TUONO 660 to improve the air intake during the initial phase of the throttle opening.
Due to the particular shape, this allows a reduction in air turbulence during the suction phase, improves the air intake from inside the air box, facilitates the intake and reduces the response time of the engine especially when you have a violent opening of the throttle.
The shape and length of the velocity stack has been studied by our design department to reconcile the engine at different engine speeds, to increase the suction strength and to improve the coverage at low engine speeds. The velocity stack is mounted inside the air box.
- Testing and more testing at the highest lever has resulted in these velocity stacks.
- These intake stacks kit improve torque delivery in the entire rpm range.
- Maximum gains throughout the power band
- Made in Italy