Exhaust DR. Jekill & Mr. Hyde, Forte Tetragon for Vespa GTS, GTS Super, GTV 310cc HPE (2024-)

Jekill & Hyde FORTE Tetragon Exhaust System Black – High-End Sound & Premium Design for Vespa GTS / GTV 310 (Euro 5+)

The FORTE Tetragon exhaust system in black brings advanced exhaust technology to modern Vespa models. Developed for Vespa GTS, GTS Super and GTV 310 HPE models from 2024 onwards (Euro 5+), it combines innovative engineering, distinctive design and individually adjustable sound at the highest level.

Electronically adjustable sound – full control

The FORTE system features an integrated electronically controlled valve system with three selectable sound modes. Depending on the riding situation, the sound can be adjusted from discreet to expressive – all at the push of a button.

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

100% road legal – Euro 5+ compliant

The system is fully homologated and complies with all current Euro 5+ regulations. The integrated control unit ensures that noise and emission levels remain within legal limits in every mode.

Tetragon design – modern and distinctive

The FORTE Tetragon Black version stands out with its angular, modern design language and premium black finish. Perfectly matched to the styling of current Vespa models, it integrates seamlessly while adding a sporty, high-end accent.

Premium engineering & quality

• Electronically controlled valve system
• High-quality materials and precision manufacturing
• Optimized integration for modern Vespa models
• Durable construction for daily use

Fitment

• Vespa GTS 310 HPE (from 2024)
• Vespa GTS Super 310
• Vespa GTV 310
• All Euro 5+ models

Focus: sound, design and riding experience

The FORTE series represents a new level of customization. It combines classic Vespa style with modern technology, delivering a riding experience that can be adapted visually and acoustically at any time.

Conclusion

The Jekill & Hyde FORTE Tetragon exhaust system in black is a premium upgrade for modern Vespa models. With electronically adjustable sound, full road legality and a striking design, it sets new standards in Vespa performance and customization.