Open intake manifold for Piaggio with 23mm connection width. This open intake is for scooters with 50cc Piaggio motor housing (Vespa, Piaggio, Gilera, Aprilia or Derbi) suitable. Ideal for Dellorto, Gurtner and Arreche plug carburettors with 23mm connection width. The carburettor is Dragster Style straight back and offers a short suction for optimal response and power delivery. Better acceleration and more top speed. Connection width: 23mm