Yasuni Aluminium Sport Exhaust – Retro style, modern performance

The Yasuni Aluminium Sport exhaust is engineered specifically for the legendary MBK 51 mopeds. It combines lightweight materials, race-inspired architecture and a sleek carbon silencer to deliver both bold visuals and a smarter, more effective power curve.

Designed to support 50cc and 70cc sport-oriented engines, this exhaust is focused on the riding range that matters most: from standstill through the mid-RPM zone. The result is a more reactive throttle, noticeably faster launches, and a higher reachable top speed — all without the need for engine modifications or carburettor upgrades.

Instead of demanding heavy tuning or complex setup, the Yasuni Aluminium lets your moped unlock its potential through efficient gas flow, progressive expansion volume and optimized pressure dynamics, giving you more speed and more drive straight out of the box.

Core strengths

• Dedicated design for MBK 51

• Aluminium silencer for a classic sport-racing look and reduced weight

• Compatible with 50cc & 70cc sport engines

• Launch-to-mid RPM performance tuning for strong real-world torque build-up

• Improved sprint ability and higher top speed – no extra adjustments needed

• Direct installation while keeping your original engine configuration untouched

Officially approved and road-homologated for

• MBK 51

Built for heritage. Made for motion.
Yasuni — ride the classic, feel the difference.