Enhance your vehicle's performance with the BBK 99-04 Ford Mustang V6 Shorty Tuned Length Exhaust Headers (Part Number 4008). Designed as direct fit replacements, these headers are crafted from 1-5/8 inch CNC mandrel bent tubing, ensuring optimal exhaust flow that boosts horsepower and torque over factory OEM manifolds. The tuned length design improves scavenging waves for superior combustion, resulting in enhanced performance and better fuel economy compared to stock or equal length headers. Each header features a robust 3/8 inch laser cut exhaust flange, providing added strength and a leak-free fit. BBK Performance headers are meticulously robotically and hand welded, then pressure tested to guarantee reliability and performance that lasts. Available in a striking titanium ceramic finish, this kit includes new exhaust header gaskets, header bolts, and hardware for complete installation. Upgrade your Mustang*s exhaust system with BBK's proven performance and enjoy the benefits of an enhanced driving experience. <b>Features:</b> * Direct fit design for 99-04 Ford Mustang V6 applications: Direct fit design for 99-04 Ford Mustang V6 applications * CNC mandrel bent tubing for unrestricted exhaust flow: CNC mandrel bent tubing for unrestricted exhaust flow * Improved scavenging waves for better combustion: Improved scavenging waves for better combustion * 3/8 inch laser cut exhaust flange for a strong, leak-free fit: 3/8 inch laser cut exhaust flange for a strong, leak-free fit * Includes new exhaust header gaskets, bolts, and hardware: Includes new exhaust header gaskets, bolts, and hardware * Available in titanium ceramic or polished silver ceramic coated finish: Available in titanium ceramic or polished silver ceramic coated finish * Backed by a 1-YEAR manufacturer's warranty: Backed by a 1-YEAR manufacturer's warranty