VOCA EVO Racing 48mm Bell Mouth foe PWK Flatside Carburetors.
Voca Bell Mouth Evo CNC type PWK red. Bell mouths, also called air horns or velocity stacks, are tapered and placed at the end of the entry of the intake channels to smooth and speed up air flow into the carburetor. The Voca bell mouth is not very long, it was developed for scooters and mopeds with limited space.
CNC-machined from HQ aluminium, with a great looking anodized red finish. Fits PWK carburetors (Keihin, Stage6 etc.) with 48mm connection.