JBA 99-02 GM Truck 6.0L LS w/o A.I.R. w/EGR 1-5/8in Primary Raw 409SS Cat4Ward Header

If you're looking to get more out of your 1999-2002 GM truck with a 6.0L LS engine, especially those without A.I.R. but with EGR, upgrading from the stock exhaust manifolds to a set of performance headers is a solid move. These JBA Cat4Ward headers are built to flow much better than the factory pieces, which can lead to improved engine power and efficiency. They are designed to fit a range of GM trucks, including models like the Chevrolet Silverado and GMC Sierra, as well as the Cadillac Escalade and GMC Yukon XL.

These headers are constructed from durable 409 stainless steel tubing, which holds up well to the demands of daily driving, towing, and even some spirited use. The primary tubes measure 1-5/8 inches, and the flanges are a stout 3/8 inch thick with oversized ports to help reduce restriction. A notable feature is JBA's proprietary Firecone collector design, which is developed using race-proven technology to help maximize power and torque gains in the RPM range where you'll likely be doing most of your driving. The package also includes factory-style emission connections and quality hardware, aiming for a straightforward installation without leaks.

When installing headers, it's always a good idea to have a new set of gaskets on hand, and to refer to the manufacturer's instructions for the best results. These headers are designed to be a direct fit for the specified applications, helping you get that improved exhaust flow and performance.