JBA 00-06 Jeep 4.0L 1-1/2in Primary Silver Ctd Cat4Ward Header

If you're looking to get more power and better breathing out of your 2000-2006 Jeep Wrangler's 4.0L engine, a set of JBA shorty headers is a solid way to go. These headers replace the restrictive factory exhaust manifold, allowing your engine to expel exhaust gases more freely. This improved flow can lead to noticeable gains in both horsepower and torque, especially in the RPM range you use most often for daily driving and towing.

JBA builds these headers from strong stainless steel tubing, which is known for its resistance to corrosion and heat. The primary tubes are 1-1/2 inches in diameter, and they feature a 3/8-inch thick machined flange with oversized exhaust ports to ensure a good seal and efficient gas transfer. A key part of their design is the proprietary Firecone collector, which JBA uses to help maximize power and torque gains. They also include factory-style emission connections and all the necessary hardware for a professional installation that aims to prevent leaks.

When installing these, you'll want to make sure you have a good set of wrenches and sockets. The included hardware should make for a straightforward bolt-on process, but always refer to the manufacturer's instructions for the most accurate installation details. Getting these headers on your Wrangler will make a difference in how it performs, especially when you need that extra bit of power.