Exhaust DR. Jekill & Mr. Hyde, Forte Tetragon for Vespa GTS, GTS Super, GTV 300cc HPE Euro 5

Jekill & Hyde FORTE Tetragon Exhaust System Black – Premium Sound & High-End Design for Vespa GTS / GTV 300 HPE (Euro 5)

The FORTE Tetragon exhaust system in black represents cutting-edge exhaust technology and premium design within the Vespa segment. Developed for Vespa GTS, GTS Super and GTV 300 HPE Euro 5 models, it combines advanced engineering, a distinctive appearance and individually adjustable sound – ideal for demanding Vespa riders and high-end custom builds.

Electronically controlled sound – full control

The integrated valve system offers three selectable sound modes that can be adjusted while riding. This allows the exhaust note to adapt to any situation – from discreet to powerful at the push of a button.

• Dr. Jekill Mode: Quiet and subtle for urban riding
• Dynamic Mode: Balanced for everyday use and touring
• Mr. Hyde Mode: Powerful and expressive for maximum presence

100% road legal – Euro 5 compliant

The exhaust system is fully homologated and meets all Euro 5 regulations. Thanks to its intelligent control system, noise and emission levels remain within legal limits in every mode.

Tetragon design – modern and distinctive

The FORTE Tetragon Black version features a sharp, technical design language combined with a premium black finish. The design is perfectly aligned with the styling of Vespa models and integrates seamlessly into the overall appearance of the scooter.

Premium engineering & quality

• Electronically controlled valve system
• Three individually selectable sound profiles
• High-quality materials and precision manufacturing
• Optimized integration for Vespa models
• Durable construction for everyday use
• 4-year manufacturer warranty

Fitment

• Vespa GTS 300 HPE (Euro 5)
• Vespa GTS Super 300
• Vespa GTV 300 HPE

Focus: sound, style and customization

The FORTE series elevates the Vespa riding experience to a new level. By combining variable sound, premium design and innovative technology, it creates a system that perfectly blends emotion and functionality for a truly individual riding experience.

Conclusion

The Jekill & Hyde FORTE Tetragon exhaust system in black is a premium upgrade for Vespa Euro 5 models with 300cc HPE engines. With electronically adjustable sound, full road legality and a seamlessly integrated design, it sets new standards in modern Vespa customization.