BBK Shorty Tuned Length Headers for 99-04 GM Truck SUV 4.8L 5.3L 1-5/8" Tubing

BBK Shorty Tuned-Length Headers — 99-04 GM Truck & SUV 4.8L/5.3L Direct-fit performance upgrade engineered for 1999–2004 GM trucks and SUVs with 4.8L or 5.3L V8 engines. These BBK Shorty Tuned-Length Headers deliver improved horsepower, torque and throttle response with a precision-fit installation. Optimized tubing: 1-5/8" CNC mandrel-bent pipes for unrestricted exhaust flow and consistent scavenging waves. Performance gains: Tuned length design improves combustion efficiency for better power delivery and potential fuel economy over stock manifolds. Durable construction: 3/8" laser-cut flanges, robotic and precision hand welding, and pressure-tested for leak-free reliability. Finish options: Available in Titanium Ceramic or Polished Silver Ceramic coatings for corrosion resistance and long life. Complete kit: Includes new header gaskets, bolts and installation hardware for a hassle-free swap. Fitment note: On the passenger side, remove the factory OE doughnut gasket from the stock manifold and reinstall it on the BBK header so the mid-pipe will seal and bolt up correctly. Upgrade your 99–04 GM truck or SUV with BBK’s tuned-length shorty headers for a combination of street-friendly fitment and measurable performance improvements backed by robust manufacturing and quality control.