Unleash more torque and horsepower with this Twisted Steel Header for your RAM 1500 HEMI. Optimized, 1-5/8" mandrel bent, 304 stainless-steel tubing improves exhaust flow for quicker throttle response and overall performance. Mandrel bent, 1-5/8" 16-gauge 304 stainless steel tubing construction for unrestrictive flow resulting in more aggressive throttle response and increased passing power. 100% MIG welded by certified craftsmen provides the strongest welds for long lasting strength and durability. Designed with true 4-to-1 mitered merge collectors to eliminate flow-block turbulence created by formed collectors. 3/8" thick, 1-piece flanges prevent warpage to ensure a leak-free seal over the life of the vehicle. Includes quality gaskets and hardware. These headers retain your stock catalytic converters and are a direct bolt-on installation which requires no cutting or drilling to provide a hassle-free installation.Unleash more torque and horsepower with this Twisted Steel Header for your RAM 1500 HEMI. Optimized, 1-5/8" mandrel bent, 304 stainless-steel tubing improves exhaust flow for quicker throttle response and overall performance.