JBA 04-08 Chrysler 5.7L HEMI 1-3/4in Primary Raw 409SS Cat4Ward Header

If you're looking to get more out of your 2005-2008 Chrysler 300 with the 5.7L HEMI engine, these JBA Cat4Ward headers are a solid choice. They replace the restrictive stock exhaust manifolds with a design that lets your engine breathe easier, which can lead to improved power and better efficiency. These headers are built from 409 stainless steel, a well-built material that holds up well to the demands of daily driving and even harder use.

What sets these apart is JBA's proprietary Firecone collector design. It's a race-proven technology aimed at maximizing power and torque gains right where you'll notice them most in everyday driving. The tubing is mandrel-bent for smooth airflow, and 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 stock emissions equipment for a cleaner exhaust system, and they come with high-quality hardware to help ensure a professional, no-leak installation.

This set is for the raw 409 stainless steel finish. You'll want to make sure you have the right tools and potentially some penetrating oil for removing the old manifolds, as they can sometimes be stubborn. Having a torque wrench is also recommended for tightening the new hardware to spec.