JBA 11-17 Ford Mustang 3.7L V6 1-5/8in Primary Raw 409SS Cat4Ward Header

If you're looking to get more out of your 2011-2017 Ford Mustang's 3.7L V6 engine, these JBA Cat4Ward headers are a solid choice. They replace the restrictive factory exhaust manifolds with a less restrictive design, which can lead to improved engine power and efficiency. This is a significant upgrade for anyone who wants their Mustang to perform better, whether for daily driving or more spirited use.

These headers are constructed from durable 409 stainless steel tubing, chosen for its ability to withstand the demands of the road. The primary tubes measure 1-5/8 inches, and they feature JBA's proprietary Firecone collector design. This design is based on race-proven technology and is intended to maximize power and torque gains in the RPM range you'll use most often. The flanges are a stout 3/8 inch thick with oversized exhaust ports to ensure a good seal and efficient flow. They also include factory-style emission connections, making it easier to hook up your emissions equipment for a cleaner exhaust system.

Installation is made more straightforward with the included high-quality hardware, designed for a professional, no-leak fit. The mandrel-bent tubing ensures consistent diameter throughout the pipe, which is crucial for smooth exhaust flow. While these are a performance upgrade, they are designed to work with your Mustang's factory emissions components, helping you meet emissions requirements.