"The all new Gen-4 850 is the most powerful and effortless sled Ski-Doo has ever released. We are very excited to do what we do best, increasing performance and making this most capable sled even more enjoyable. Coupled with our Double Walled Design which greatly decreases under the hood heat and also reduces harmful engine harmonics. HPS has proven their designs with supplying two decades of lightweight and durable snowmobile silencers. The New Platinum Lite Ceramic is a rich metallic finish rated for 2200 degrees and twice as durable as our previous polished coating."