Polini For Race 5 exhaust system for Yamaha Aerox/ Minarelli Horizontal 50cc 2-stroke liquid-cooled scooters.

The Polini For Race 5 expansion chamber exhaust has been developed through extensive track testing and racing experience, it features an improved exhaust design to optimise performance.

The redesigned manifold outlet and expansion chamber geometry improve exhaust gas flow, enhancing engine responsiveness, mid-range torque and acceleration. Hand-welded construction combines different-sized sections for precise manufacturing, while the lightweight black alloy silencer features a straight-through internal core and a fully dismountable design for easy maintenance.

Features:
•Redesigned manifold outlet for improved exhaust gas flow,
•Optimised expansion chamber geometry,
•Improved engine response, mid-range torque and acceleration,
•Hand-welded exhaust construction,
•Lightweight black alloy silencer with laser engraving,
•Straight-through silencer core,
•Fully dismountable silencer for easy replacement of sound-deadening material.

Polini 200.0338