1.75ö to 1.875ö high-flow 16-gauge stepped primary headers with an obround 1.875ö crossover 4ö-diameter, 16-gauge absorptive mufflers with 2ö inlets and removable billet tips 2.50,ö 220?, 16-gauge heat shields 18mm and 12mm O2 bungs welded into the primaries Heavy-duty, AccuSeal« reaction-block header-to-muffler clamps included Removable insert for ultimate sound control. EXH 2:2 W/4.5"M 09-16FL C