10-32 Coupling Nut

The Straightline Performance Ski-Doo 800R Summit Lightweight Muffler is a ceramic-coated exhaust upgrade that delivers an impressive 8-pound weight savings while maintaining a deep, performance-inspired exhaust tone. Designed specifically for mountain riders, this direct bolt-on muffler improves maneuverability, responsiveness, and overall riding performance without requiring clutching, jetting, or fuel calibration changes. Proven through years of real-world mountain riding, it remains one of the most trusted lightweight muffler upgrades for the 800R Summit platform.