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

When you're looking to get more out of your 2000-2006 Jeep Wrangler's 4.0L engine, this JBA Cat4Ward header is a solid choice. You'll receive the header itself, which is designed to replace your restrictive stock exhaust manifold. It also comes with factory-style emission connections and high-quality hardware, ensuring a professional installation right out of the box.

This header is built from durable stainless steel tubing, which is mandrel-bent for smooth exhaust flow. The 3/8-inch thick flanges are machined and feature oversized exhaust ports, helping to reduce backpressure. JBA's unique Firecone collector design is a key feature here; it's a race-proven technology aimed at maximizing power and torque gains in the RPM range you'll use most often for daily driving or towing. The extra-thick collector domes add to the overall robustness of the unit.

Swapping out your stock manifold for this header should result in improved engine performance and efficiency. The less restrictive design allows your engine to breathe more freely, which can translate to a noticeable difference when you're on the trail or the highway. Refer to the manufacturer's installation instructions for specific details on mounting and connecting the emission components.