Unleash torque and horsepower with this Twisted Steel series header for your 24 valve Cummins. 1 - 34 head pipes stepped to 2 mandrel bent 304 stainless steel tubing and a 12 laser cut T - 3 divided flange builds quicker turbo boost, improves throttle response and overall performance. TIG welded for strength and durability, this system is equipped with 18 EGT ports for auxiliary equipment. 1 - 34 - 2 304 stainless steel tubing, is used to increase exhaust velocity and increase usable torque. This means a more aggressive throttle response and increased passing power. Durable mandrel bent brushed 304 stainless steel tubing for corrosion resistance. 100 TIG - Welded by certified craftsmen provides the strongest welds reducing stress cracks for race proven strength and durability. This system utilizes a divided T - 3 flange that allows for a increase exhaust velocity, turbo spool, and boost.