The Bassani Road Rage II 2-into-1 B1 Series full exhaust system was designed specifically to address the needs of tuned motors built for high-horsepower applications. 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. 2-into-1 collector system stepped head pipes Oxygen sensor ports 2-1/2" diameter x 16-1/2" baffle wrapped in woven fiberglass matt is removable and serviceable Very aggressive sound Includes full coverage heat shields