2017-21 850 Ski-Doo G4 Lightweight Silencer 09-321Lighten up your snowmobile by replacing the stock silencer with SLP's lightweight version. So what sets SLP silencers apart from the rest? For starters, each SLP silencer has been dyno tested and field verified to ensure maximum reliable horsepower is attained while shedding the desired weight. Sound level emissions are also a focus at SLP. We strive for the quality, robust sound that you desire while keeping the sound levels low. Many of our models