Dr. Jekill & Mr. Hyde Supreme Streetfighter Adjustable Slip-On Muffler The Supreme stands at the pinnacle of electronically adjustable exhaust systems for the Indian Chief series, embodying over two and a half decades of Dr. Jekill & Mr. Hyde's expertise in adjustable exhaust technology. It features a revolutionary electronic valve system that allows riders to switch between three sound modes effortlessly, offering unmatched sound control on demand. Whether navigating urban landscapes or the open road, The Supreme offers riders the ultimate control over their motorcycle's auditory expression. Crafted with precision in Holland since 1997, it represents the intersection of high performance, impeccable sound quality, and design versatility, catering to those who value a personalized riding experience. Features: Crank up the character of your Indian Chief with The Supreme Easily switch between all 3 modes Dr. Jekill Mode - A calm, low-key but distinctive sound Dynamic Mode - A tamed Mr. Hyde sound Mr. Hyde Mode - The exhaust boosts a beautiful, deep rumble Electronically Controlled: Operated by an advanced electronic switch seamlessly integrated into your bike Precision-engineered for adjustment and reliability Enhances exhaust flow, backpressure, throttle response, and torque Direct-fit design requires no modifications or tuning Compliant for emissions standards Slashcut end caps Comes with a 4 year, unlimited mile warranty