JBA 02-13 GM Truck 4.8L/5.3L LS Raw 409 Cat4Ward Header

When you're looking to get more out of your GM truck's engine, a set of JBA Cat4Ward headers is a solid upgrade. This particular set, part number 1850S-2, is designed for a range of GM trucks from 2002 through 2019, including popular models like the Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Tahoe, specifically for the 4.8L and 5.3L LS engines. These headers replace your restrictive factory exhaust manifolds, allowing your engine to breathe more freely, which can lead to improved power and better fuel efficiency.

What you get in the box are the raw 409 stainless steel headers themselves, featuring 1-1/2 inch primary tubes and 3/8 inch thick machined flanges with oversized exhaust ports for better flow. JBA uses their proprietary Firecone collector design, which they say is race-proven to help maximize power and torque gains in the RPM range you'll use most often. The tubing is mandrel bent to maintain consistent diameter throughout, and the collector domes are extra thick for durability. This kit also includes factory-style emission connections and all the necessary high-quality hardware for a professional, no-leak installation, so you won't have to scramble for extra parts.

The 409 stainless steel construction is chosen for its durability, helping these headers stand up to the demands of daily driving, towing, and even occasional spirited use. If you're looking to uncork some extra performance from your LS engine, these JBA headers are a well-built option that includes everything needed for a proper installation.