The Straightline Performance Ski-Doo REV Gen 4 and Lynx Radian 600R E-TEC Lightweight Muffler is a ceramic-coated exhaust upgrade designed to reduce weight while maintaining a deep, refined exhaust tone. Featuring a direct bolt-on design with no clutching or fuel calibration changes required, this muffler improves handling, responsiveness, and overall riding enjoyment while keeping sound levels trail-friendly and comfortable for all-day riding.