Triumph Bonneville Speedmaster adjustable exhaust - King Wrinkle Black (2018-2020)
- Exhaust: King
- Endcap: 3,5" Slashcut
- Color: Wrinkle Black
E-marking
Full legality according to European regulations
High-quality stainless steel exhaust system
For maximum durability
Optimal performance
Power and torque when the valve is open
Three sound modes
Three adjustable sound modes for every ride and situation
Easy installation
Works immediately without extra tuning or engine modifications
Installation difficulty
TRIUMPH BONNEVILLE SPEEDMASTER
TRIUMPH BONNEVILLE SPEEDMASTER
STREET LEGAL
Dr. Jekill & Mr. Hyde | The Exhaust is a fully legal exhaust system that complies with European regulations and is ECE, EC type-approved, and TÜV certified. The reason for this is that every Dr. Jekill & Mr. Hyde system includes a Smartbox — an electronic control unit that serves as the brain of the product. It contains software that reads CANBUS signals from the motorcycle’s ECU.
By adhering to the parameters defined by EU legislation, the Smartbox intervenes seamlessly and subtly when necessary. Riders never have to worry about breaking the law; the system remains fully legal at all times, regardless of the selected sound mode.
HOW IT WORKS
Our exhaust systems feature three distinct personalities: the Dr. Jekill mode, the Dynamic mode, and the Mr. Hyde mode. With just the push of a button, a valve inside the muffler closes, opens halfway, or fully opens, giving your exhaust more power and performance. Our software is programmed to intervene subtly and almost imperceptibly when legal parameters are reached, ensuring you remain 100% street legal in all riding modes.
