Unobtrusive box exhaust system with near-series look, early torque and wide usable power band. Suitable for Piaggio PK 50-80 cc (incl. PK 80) as well as for Motovespa PK 50 cc and Motovespa PK 75 XL/FL. Not suitable: Motovespa PK 75 S and PK 75 Junior, PK Automatica.
Not suitable: PK Automatica (different engine/exhaust flow).
Not suitable: PK 75 S and PK 75 Junior. Requirement: Shift smallframe engine.