JBA 04-15 Nissan 4.0L V6 1-5/8in Primary Raw 409SS Cat4Ward Header

Starting with 3/8" thick machined flanges and oversized exhaust ports, these JBA Cat4Ward headers are built to handle the demands of your 2005-2019 Nissan Frontier, Pathfinder, or Xterra. They're a significant step up from the restrictive stock exhaust manifolds, designed to help your 4.0L V6 engine breathe easier and put out more power and torque where you use it most.

The primary tubing is constructed from durable 409 stainless steel, formed with mandrel bends to maintain consistent diameter and flow. JBA's proprietary Firecone collector design is a key feature, using race-proven technology to maximize power and torque gains. These headers also include factory-style emission connections, ensuring you can properly connect your emissions equipment for a clean and compliant installation. The extra-thick collector domes add to the overall robustness of the header, making them well-built for daily driving, towing, or even more spirited use.

When you're looking to improve your vehicle's performance, these JBA headers come with high-quality hardware to help ensure a professional, no-leak installation. They're a solid option for anyone wanting to get more out of their 4.0L V6 Nissan.