The Straightline Performance Vari-Sound Muffler is the industry's first electronically controlled exhaust system for the Ski-Doo and Lynx 900 ACE Turbo platform. Delivering a proven 2–3 horsepower gain and 6-pound weight savings, this stainless steel system allows riders to instantly switch between a quiet trail-friendly muffler and an aggressive direct-exit exhaust using the included wireless remote control. Complete with plug-and-play electronics, aluminum trim ring, and all installation hardware, this is one of the most innovative upgrades available for the 900 Turbo platform.