MOTOWINGS THRASHER EXHAUST FOR XPULSE WITH DB KILLER- BS6 (4 Valve)Moto Wings Performance Exhaust for Hero Xpulse 200 The Sound of a motorcycle grab the heart and moves the soul, the complete line of MWP Muffler is tuned to enhance the Bass and Deliver a Rich Melodic Tone from Idle to wide performance improvement take caring fuel efficiency and maintaining approved sound levels. Performance mufflers are designed to scientifically increase air flow and add torque and horsepower you can feel with a twist of throttle.