HMF Exhaust for Polaris Sportsman 1000 is available in a Full system in the stainless steel Titan and Titan XL. All other Sportsman models are available in a slip-on in the stainless steel Titan and Titan XL. Each exhaust series picked up 2 horsepower with 2lb/ft of torque at the rear tires. The Titan exhaust offers a deep tone. The stock exhaust system measures 84dB at idle, while the Titan-QS measured 85dB and the Titan-XL measured at 87dB. Free spark arrestor with each muffler ordered!