Upgrade your vehicle's performance with the BBK 40470 Shorty Tuned Length Headers, designed specifically for 2014-2018 Chevrolet GM Trucks with 5.3L and 6.2L engines. These headers are engineered to be direct fit replacements, providing a significant boost in horsepower and torque compared to factory OEM manifolds. The 1-3/4 inch CNC mandrel bent tubing ensures unrestricted exhaust flow, which is essential for maximizing your engine's potential. In addition to enhancing performance, these BBK headers improve exhaust scavenging waves for better combustion, leading to increased fuel efficiency. Crafted from high-quality materials, they feature a 3/8 inch laser cut flange for added strength and a guaranteed leak-free fit. Each header undergoes rigorous robotic and precision hand welding, followed by pressure testing to guarantee years of reliable performance. Available in a polished silver ceramic finish, the BBK 40470 headers come complete with new gaskets, header bolts, and installation hardware for a hassle-free upgrade. <b>Features:</b> * Direct fit replacements for 2014-2018 Chevrolet GM Truck 5.3L and 6.2L: Direct fit replacements for 2014-2018 Chevrolet GM Truck 5.3L and 6.2L * 1-3/4 inch CNC mandrel bent tubing for unrestricted exhaust flow: 1-3/4 inch CNC mandrel bent tubing for unrestricted exhaust flow * Improves horsepower and torque over factory OEM manifolds: Improves horsepower and torque over factory OEM manifolds * Enhances fuel efficiency with better combustion: Enhances fuel efficiency with better combustion * 3/8 inch laser cut flange for strength and leak-free fit: 3/8 inch laser cut flange for strength and leak-free fit * Robotically and precision hand welded for durability: Robotically and precision hand welded for durability * Includes new gaskets, header bolts, and installation hardware: Includes new gaskets, header bolts, and installation hardware