JBA 04-10 Ford F-150 5.4L 3V 1-5/8in Primary Raw 409SS Cat4Ward Header

Starting with 3/8-inch thick machined flanges and oversized exhaust ports, these JBA Cat4Ward headers are built to handle the demands of your 2004-2010 Ford F-150 with the 5.4L 3V engine. They're a significant step up from restrictive stock exhaust manifolds, designed to help your engine breathe better and unlock more power and efficiency. The headers are constructed from durable 409 stainless steel tubing, chosen for its ability to withstand the rigors of daily driving, towing, and even spirited use.

A key feature is JBA’s proprietary Firecone collector design. This isn't just for looks; it's a race-proven technology aimed at maximizing torque gains in the RPM range you'll use most often. The tubing itself is mandrel-bent, ensuring consistent diameter throughout for smooth exhaust flow. You'll also find factory-style emission connections included, along with high-quality hardware, to help ensure a professional, leak-free installation. The extra thick collector domes add to the overall robustness of the header assembly.

When you're looking to improve your truck's performance, these JBA headers are a solid option. They are designed as a direct fit for your F-150, and also fit the Lincoln Mark LT from 2006-2008. While these headers are designed to bolt up, it's always a good idea to refer to the manufacturer's installation instructions for any specific details or recommended procedures.