Freedom Performance Union 2-into-1 is performance oriented as the headers are triple stepped allowing for maximum performance. The stepped header increases horsepower, torque, and even assists reducing the heat. The header is equipped to a 4" muffler body that is equipped with a removable baffle but being a 2-into-1 system, you might want to keep it in to retain the performance aspects. Available in Black or Chrome with mutliple end tip options Stainless steel hardware and brackets included 4" muffler body stepped to 4.5" end tip Removable baffle One-year manufacturer's warranty Ghost pipes available for the traditional 2 pipe look