Bassani Road Rage B4 Exhaust For Harley Touring The Bassani Road Rage II 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: Feature 2-into-1 equal-length headers Stepped 1-3/4 to 1-7/8 head pipes Utilizes an advanced inner collector for maximum performance Recommended for engines with up to 120 hp