SIDEWINDER 2-1 for M8 TOURING MODELS–ChromeS&S Cycle has created the next level in high performance bagger exhaust! Merging a full flow stainless header into a highly engineered collector and culminating in a 4. 5" muffler, the new Sidewinder represents the perfect combination of style and power. Fitment 20172021 M8 FL Models Features and Benefits 2 1 styling for high performance baggers Stainless steel stepped header High flow cat Increased power and torque Show quality chrome Highlight