POLINI diaphragm intake manifold Ø 19 mm for Vespa V50 and PV125 with 2-hole connection
As with the rotary valve intake manifolds, it is important to select the correct manifold to match the engine housing or chassis mounting type.
The advantage of the diaphragm is that the intake tract can be designed more freely. The intake time is no longer restricted by the rotary valve. This results in significantly more power and torque, especially in the lower and mid-range.
DE | €
