JBA Cat-Back Exhaust System

Dodge Durango 04-07 5.7L/4.7L

Part #: 40-1512

Overview

The JBA Cat-Back Exhaust System is engineered specifically for the 2004 through 2009 Dodge Durango equipped with either the 4.7L V8 or the 5.7L Hemi engine. Designed for enthusiasts seeking a balanced upgrade, this system enhances your vehicle’s performance, exhaust tone, and overall driving experience. By replacing the factory exhaust components with a free-flowing, mandrel-bent stainless steel system, JBA delivers improved exhaust flow that translates into better throttle response and efficiency without sacrificing daily drivability.

This exhaust system is ideal for Durango owners who want a noticeable increase in power and a refined, aggressive exhaust note that is not overpowering inside the cabin. Whether you use your Durango for daily driving, towing, or spirited weekend drives, the JBA Cat-Back system offers a durable and high-quality upgrade that complements your vehicle’s capabilities.

Key Features

JBA’s Cat-Back Exhaust System combines advanced engineering with premium materials to provide a reliable and performance-oriented upgrade. Key features include:

• Large diameter mandrel-bent stainless steel tubing for unrestricted exhaust flow
• High-flow stainless steel muffler(s) designed to optimize sound and performance
• Polished stainless steel chrome exhaust tip(s) for a clean, factory-style appearance
• Factory-style hangers for easy installation and secure fitment
• Complete hardware kit included for a hassle-free upgrade
• Corrosion-resistant stainless steel construction for long-lasting durability
• Engineered specifically for 4.7L V8 and 5.7L Hemi engines in the Dodge Durango
• Designed to maintain a balanced exhaust tone without excessive cabin noise

Construction & Design

The JBA Cat-Back Exhaust System is crafted from high-quality stainless steel, ensuring resistance to rust and corrosion for extended service life. The tubing is mandrel-bent, which maintains a consistent diameter throughout bends to maximize exhaust flow and minimize restrictions. This precision bending helps preserve horsepower and torque gains while delivering a smooth exhaust tone.

The system includes high-flow stainless steel mufflers that are engineered to reduce backpressure while providing a deep, aggressive exhaust note. Polished chrome tips add a sleek, factory-style finish that complements the Durango’s rear aesthetics. Factory-style hangers and included hardware ensure a secure, vibration-free installation that aligns perfectly with the vehicle’s original mounting points.

Performance & Sound

By replacing the restrictive factory exhaust components with a free-flowing design, the JBA Cat-Back Exhaust System improves exhaust scavenging and reduces backpressure. This results in enhanced throttle response and potential gains in horsepower and torque, particularly noticeable during acceleration and towing scenarios.

The exhaust tone is carefully tuned to provide a sporty, aggressive sound that enhances the driving experience without being intrusive inside the cabin. This balance makes it suitable for daily driving while still delivering the performance sound enthusiasts desire.

Installation & Fitment

The JBA Cat-Back Exhaust System is designed for a direct bolt-on installation on 2004–2009 Dodge Durango models equipped with 4.7L V8 or 5.7L Hemi engines. No cutting, welding, or additional modifications are required, making it a straightforward upgrade for experienced DIYers or professional installers. Factory-style hangers and included hardware ensure a secure fit and proper alignment with the vehicle’s existing exhaust mounts.

What's Included

• Mandrel-bent stainless steel cat-back tubing
• High-flow stainless steel muffler(s)
• Polished stainless steel chrome exhaust tip(s)
• Factory-style hangers
• Complete installation hardware kit

Ideal For

This exhaust system is perfect for Dodge Durango owners who want to enhance their vehicle’s performance and sound without compromising daily comfort or requiring complex installation. It suits enthusiasts looking for a durable, high-quality upgrade that delivers improved power, a refined exhaust tone, and a polished appearance. Whether for towing, commuting, or spirited driving, the JBA Cat-Back Exhaust System offers a reliable and effective enhancement for your Durango’s exhaust setup.

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.