Bassani Road 2-Into-1 Exhaust System For Harley XL The Bassani Road Rage 2-into-1 is a full exhaust system for motorcycle enthusiasts who are serious about horsepower. This exhaust system was developed to produce flat torque curves and a noticeable increase in horsepower via precision-fabricated high-grade 16-gauge steel 1-3/4 to 1-7/8 stepped head pipes. The true reverse-cone megaphone features a fluted billet aluminum end cap and includes a removable spiral-core louvered baffle. Features 1-3/4 head pipe steps up to 1-7/8 into the collector to increase flow and improve performance Removable spiral-core louvered baffle included Oxygen sensor ports Includes mounting hardware Heat shields included