JBA Shorty Header

1997–2006 Jeep Wrangler 4.0L

Part #: 1527SJT

Overview

The JBA Shorty Header in Titanium Ceramic finish is a premium performance upgrade designed specifically for the Jeep Wrangler equipped with the 4.0L inline-six engine from 1997 through 2006. This header replaces the restrictive factory exhaust manifolds, providing a more efficient exhaust flow that enhances engine power and responsiveness. Ideal for Jeep enthusiasts seeking improved throttle response, increased horsepower, and better overall engine efficiency, the JBA Shorty Header is engineered to deliver noticeable gains without compromising reliability or drivability.

Built to withstand the rigors of daily driving, off-road adventures, and towing, this header is a durable and practical upgrade that balances performance with longevity. Its design incorporates race-proven technology to maximize power and torque gains where it matters most, making it a smart choice for Jeep owners looking to unlock the full potential of their 4.0L engine.

Key Features

The JBA Shorty Header offers a range of advanced features that contribute to its superior performance and durability:

• Mandrel bent stainless steel tubing for smooth exhaust flow and reduced restrictions
• Proprietary JBA Firecone collector design, optimized for maximum power and torque gains
• Factory-style emission connections to maintain compliance and ease of installation
• Extra thick collector domes for enhanced durability and heat management
• 3/8" thick machined flanges with oversized exhaust ports for improved sealing and flow
• Titanium ceramic coating for superior heat resistance and corrosion protection
• Includes high-quality hardware for a professional, leak-free installation

Construction & Design

Crafted from premium stainless steel, the JBA Shorty Header is engineered to endure the harsh conditions of off-road use, towing, and spirited driving. The mandrel bending process ensures consistent diameter throughout the tubing, minimizing turbulence and maximizing exhaust gas velocity. The titanium ceramic coating not only provides a sleek appearance but also offers excellent heat dissipation and corrosion resistance, extending the life of the header and protecting surrounding engine components.

The Firecone collector is a hallmark of JBA’s design philosophy, utilizing race-proven technology to optimize exhaust scavenging and improve engine breathing. Thick, machined flanges with oversized ports ensure a precise fit and superior sealing against the cylinder head, reducing the risk of leaks and enhancing overall performance.

Performance & Sound

By replacing the restrictive factory manifolds, the JBA Shorty Header significantly improves exhaust flow, resulting in increased horsepower and torque throughout the RPM range. Drivers will notice enhanced throttle response and a more aggressive exhaust note that complements the Jeep Wrangler’s rugged character without being overly loud or intrusive. This header is designed to deliver performance gains where you drive most, whether on the street, trail, or highway.

Installation & Fitment

The JBA Shorty Header is a direct bolt-on replacement for the stock exhaust manifolds on 1997–2006 Jeep Wrangler 4.0L models. It includes factory-style emission connections to ensure compatibility with existing emissions equipment, making installation straightforward and compliant. High-quality hardware is provided to facilitate a secure, leak-free fit. No major modifications are required, allowing for a hassle-free upgrade that can be completed with basic hand tools.

What's Included

• JBA Shorty Header with Titanium Ceramic coating
• Factory-style emission connection fittings
• High-quality installation hardware
• Detailed installation instructions

Ideal For

This JBA Shorty Header is ideal for Jeep Wrangler owners who want to enhance their vehicle’s performance and exhaust efficiency without sacrificing reliability. It suits daily drivers, off-road enthusiasts, and those who tow or carry heavy loads, providing a durable upgrade that improves power delivery and engine sound. If you’re looking to unlock additional horsepower and torque from your 4.0L engine with a quality, long-lasting component, this header is an excellent choice.

JBA Performance Exhaust is known for performance headers and exhaust systems for cars and trucks, including street and race-oriented configurations. Their lineup is built to improve exhaust flow and deliver a stronger performance sound, with many applications geared toward enthusiast builds that want power gains without sacrificing fitment.