The Jekill and Hyde Company is the world's fastest growing manufacturer and supplier of electronically adjustable exhaust sys ... tems. We produce the highest quality electronically adjustable exhaust systems in the world. Our systems are 100% street legal and have a European type approval as well as being TUV tested. Our products are a result of German engineering and Dutch craftsmanship. With our headquarters in the Netherlands, more than 60 employees across the world and more than 8 foreign offices we provide motorcyclists with the absolute best exhaust system in today’s market. In sound, aesthetics, quality and performance Dr. Jekill & Mr. Hyde exhausts are second to none. read more