With an intake horn in place of the air filter on the SI carburetor, the engine becomes considerably livelier, and depending on the configuration, as much as 1-1.5 hp more power can be obtained.
The range adjustment from 1/8 to 1/2 throttle is greatly improved.

Supply:
28 mm CNC-milled aluminum intake horn specifically for the 28 mm Pinasco SI carburetor.
All necessary screws for mounting.

We recommend starting with a main jet of 130 to 140, as the engine receives much more air through the cornet.