JBA 88-93 GM Truck 7.4L BBC w/A.I.R. 1-3/4in Primary Raw 409SS Cat4Ward Header

When you're looking to get more out of your 1988-1993 Chevrolet C3500 with the 7.4L BBC engine and A.I.R. system, this JBA Cat4Ward Header set is what you get. Inside the box, you'll find the headers themselves, constructed from raw 409 stainless steel, along with factory-style emission connections and high-quality hardware to ensure a professional, leak-free installation. These headers are designed to be a significant performance upgrade over your stock exhaust manifolds, offering a less restrictive path for exhaust gases to exit the engine. This improved flow can lead to noticeable gains in both power and efficiency, making your truck feel more responsive, especially when you need it for towing or daily driving.

What sets these JBA headers apart is their construction and design. The primary tubes are 1-3/4 inches in diameter, feeding into JBA's proprietary Firecone collector. This collector design uses technology proven on the race track to maximize power and torque gains in the RPM range you'll use most often. The headers are built from durable stainless steel, specifically 409 stainless, which is known for its resistance to corrosion and ability to withstand the rigors of demanding use, whether that's hauling heavy loads or just your everyday commute. The flanges are a solid 3/8-inch thick with oversized exhaust ports, and the collector domes are extra thick, all contributing to a well-built component that’s made to last. The inclusion of factory-style emission connections means you can maintain your vehicle's emissions system without major modifications.

Installing these headers can make a real difference in how your truck performs. Because they are designed as a direct fit for the specified GM trucks, the installation process should be straightforward, especially with the included hardware. You'll notice an improved exhaust note and a more eager engine response. If you're looking to enhance the performance of your 7.4L BBC equipped GM truck, these JBA headers offer a solid option that balances performance, durability, and ease of installation.