S&S CYCLE 2-into-1 Diamondback Exhaust System — 4" muffler diameter, 50 State, Guardian Black – 17-23 Touring, 17-23 CVO

Experience improved flow and torque with oversized stepped header primary tubes designed for optimal scavenging. 🔧

Full stainless steel construction and stainless steel header pipe heat shields provide corrosion resistance and long life. 🛡️

Header length is tuned to help your M-Eight motor make excellent power across the rev range. ⚙️

Four exhaust bungs allow easy O2 sensor installation and air/fuel monitoring for precise tuning. 🔩

Computer-aided design and precision bending improve ground clearance while maintaining aggressive styling. 🇺🇸

Made in the U.S.A. and engineered for reliable, real-world performance. 🔥