Khrome Werks 2-Into-2 Dominator Exhaust System163131786 Product Description Enlarged interconnected headers make for improved horsepower and low end torque 1 3 4 to 1 7 8 high flow 16 gauge stepped primary headers Features full 2 left side crossover and 4 1 2 muffler bodies with 2 inlets 2 1 2, 220, 16 gauge heat shields Removable baffles are wrapped in stainless steel wool and high temp fiberglass for a rich mellow tone 18 mm and 12 mm O2 bungs welded into the primaries Heavy duty, AccuSeal