The HPS exhaust for the Ski-Doo Gen4 850 Turbo is the perfect combination of performance, durability, light weight, and sound quality. This is the only performance muffler designed for the Factory Turbo with an aftermarket down pipe manifold made to utilize space and allow room for the HPS heat storage bracket and bag (available here). Recreated from the ground up with our unique double walled, dual chamber design that gives the customer the durability and that deep HPS Signature tone that our customers love.