JBA 04-15 Nissan 4.0L V6 1-5/8in Primary Ti Ctd Cat4Ward Header

If you're looking to get more out of your 2005-2019 Nissan Frontier, Pathfinder, or Xterra with the 4.0L V6 engine, these JBA Cat4Ward headers are a solid option. 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 trucks and SUVs that do a lot of towing or are used for daily driving.

These headers are built from durable stainless steel tubing, so they're made to handle the demands of regular use, whether that's hauling gear or just your daily commute. The flanges are a thick 3/8 inch with oversized exhaust ports to help with flow. JBA uses their proprietary Firecone collector design, which is based on race-proven technology, to help maximize power and torque gains in the RPM range you'll use most often. The tubing is mandrel bent to maintain consistent diameter throughout, ensuring smooth exhaust flow.

Installation is made easier with factory-style emission connections, and JBA includes high-quality hardware to help ensure a professional, leak-free installation. You'll also find extra thick collector domes for added durability. This is a well-built header system designed to bolt right up to your existing exhaust system, making it a straightforward upgrade for your truck or SUV.