JBA 99-01 GM Truck 4.8L/5.3L LS w/o A.I.R. w/EGR 1-5/8in Primary Silver Ctd Cat4Ward Header

If you're looking to get more power and better flow out of your 1999-2001 GM truck with a 4.8L or 5.3L LS engine, these JBA Cat4Ward headers are a solid choice. They replace the restrictive factory exhaust manifolds, which can really open up the engine's breathing. This means you'll notice improved throttle response and a bit more grunt, whether you're towing or just driving around town.

These headers are built from strong stainless steel tubing, so they're made to last through daily driving, towing, and whatever else you throw at them. The flanges are a beefy 3/8 inch thick with oversized ports to match the engine's flow. JBA uses their proprietary Firecone collector design, which is a proven way to help maximize power and torque gains right where you need them most – in the everyday RPM range. They also include factory-style emission connections and all the hardware you need for a clean, leak-free installation, making the job smoother.

This header set is designed to fit a range of GM trucks from that era, including popular models like the Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Tahoe. They come with a silver coating for a clean look and added protection. If you're doing a full exhaust upgrade, these headers are a great starting point to improve your truck's performance.