Jekill and Hyde Short Black Streetfighter BMW R-18

Dr. Jekill & Mr. Hyde | The Exhaust offers a completely street legal, premium quality exhaust with 4 years warranty. Our exhaust system makes it possible to choose between three different sound modes on the fly: silent, dynamic and rumbling!

The Exhaust is a result of German engineering and Dutch craftsmanship. With state of the art technology, perfectly crafted by the best engineers in town. With computer simulations, the building of prototypes and extensive testing, we’ve created a tailor made exhaust for each and every bike. By riders, for riders.

A Dr. Jekill & Mr. Hyde exhaust allows the rider to choose between 3 different sound modes. This means that the rider can enjoy the ride with his favorite soundtrack coming from his exhaust, but also be silent and calm when this is appropriate. You can choose between a silent, mellow tone, a dynamic mid-tone or go for a deep bass sound without any treble or mid tones. With a simple push of a button, a valve in the muffler closes or opens, allowing the sound level and character to be adjusted to the moment while riding. This valve is positioned in the center of the exhaust, which gives the exhaust gases the possibility to bypass. The optimum position for sound, performance and emission and not visible from outside, which fits with our clean optic perfectly. (Note: Blackbox systems (motorcycles without CAN bus) offer two sound modes.)

Dr. Jekill & Mr. Hyde | The Exhaust is a completely legal exhaust system that complies with European laws and is ECE, EG-BE and TÜV approved. The reason for this is that every Dr. Jekill & Mr. Hyde system contains a smartbox: this electronic control unit is the brain of the product and contains software that reads CAN bus signals coming from the motorcycle’s ECU.

By committing the system to the parameters set by EU legislation, the Smartbox will seamlessly and subtly intervene if necessary. Riders don’t have to worry about breaking the law in any situation; the system is always legal no matter what sound mode is selected.

That being said, we must also understand that we live in a crowded society where we have to accept that we also need to be considerate when it comes to the people around us, people that are maybe not at all charmed by the sound of a rumbling motorcycle. That is why at The Jekill and Hyde Company we offer you the possibility to adjust your sound to the moment. By doing this you can continue to carry out your favorite hobby, without disturbing others.

Quality is one of our most important core values. Dr. Jekill & Mr. Hyde | The Exhaust does not only look great, it also needs to be a reliable and high quality product. All our exhaust systems need to withstand all kinds of extreme (weather)conditions and extreme heat. Therefore they are thoroughly tested, before going into production.

All our systems and products are thoroughly tested, before going into production. Only when they pass all tests, where they are subjected to the harshest (weather) conditions and extreme heat, our products become available to the public. With this in mind, it was only a logical step for us to upgrade our standard warranty to 4 years.

Dr. Jekill & Mr. Hyde | The Exhaust offers the best performance and power for your motorcycle. This means that when the valve is opened an increase in performance is realized. Thanks to the design of the exhaust, there is no loss in performance while riding with a closed valve. This ensures a safe and smooth riding experience, regardless of the mode you ride in. Note; when you tune your motorcycle, the difference between the opened or closed valve gets bigger.