Bernings Performance 2-1 Exhaust System for 1991-2017 Dyna

The Bernings Performance 2-1 Exhaust System is a high-performance stainless steel exhaust upgrade for 1991–2017 Harley-Davidson Dyna models. Designed to increase exhaust flow, support more torque and power, and deliver a clean performance-inspired look, this system is built for riders who want a premium 2-into-1 exhaust with serious performance output. Important Note: All Bernings Performance Exhaust Sytstems come equipped with 18mm O2 bungs, if your bike is carbureted or not equipped with O2 sensors you will need to purchase 18mm O2 bung plugs separately. 18mm to 12mm O2 bung reducers are also available for purchase separately.