MagnaFlow Competition Series Cat-Back Performance Exhaust

2012–2018 Jeep Wrangler 3.6L V6

Part #: 15118

Overview

The MagnaFlow Competition Series Cat-Back Performance Exhaust System 15118 is engineered specifically for Jeep Wrangler models equipped with the 3.6L V6 engine from 2012 through 2018. This direct-fit cat-back system replaces the factory exhaust from just behind the catalytic converter to the rear exit, delivering a bold and aggressive exhaust tone that enhances your Jeep’s presence without overwhelming cabin noise. Designed for Jeep enthusiasts who demand improved performance and a distinctive sound, this exhaust system balances daily drivability with off-road capability.

With a focus on durability and precision fitment, the MagnaFlow 15118 exhaust system offers noticeable gains in horsepower and torque by optimizing exhaust flow. Whether you’re navigating rugged trails or cruising city streets, this system provides a sporty exhaust note and improved throttle response that elevates your driving experience.

Key Features

Built to enhance both performance and aesthetics, the MagnaFlow Competition Series exhaust system includes:

• Constructed from 100% corrosion-resistant 409 stainless steel for long-lasting durability
• Mandrel-bent 2.5-inch main piping to ensure smooth exhaust flow and minimize restrictions
• Single straight-through muffler design that delivers an aggressive exterior sound with moderate interior volume
• Single straight passenger side rear exit with 2.5-inch satin welded-on single wall angle cut tips for a clean, sporty appearance
• Direct-fit cat-back layout replacing exhaust from near the catalytic converter to the rear, ensuring precise fitment without modifications
• Manufactured using advanced 3D scanning and CNC robotic technology for consistent quality and easy installation
• Backed by MagnaFlow’s limited lifetime warranty for peace of mind

Construction & Design

The MagnaFlow Competition Series exhaust system is crafted from premium 409 stainless steel, known for its excellent resistance to corrosion and ability to withstand high temperatures encountered during performance driving. All tubing is mandrel bent to maintain a consistent diameter throughout the system, optimizing exhaust gas flow by reducing turbulence and backpressure.

The system features a single straight-through muffler that strikes a balance between an aggressive exhaust note and manageable interior sound levels, making it suitable for both spirited driving and everyday use. The satin-finished welded-on tips provide a refined yet sporty look that complements the rugged styling of the Jeep Wrangler.

Precision manufacturing using CNC robotic technology ensures each component fits perfectly, maintaining factory mounting points and eliminating the need for cutting or welding during installation.

Performance & Sound

This cat-back exhaust system is designed to improve your Jeep Wrangler’s performance by enhancing exhaust flow, which can contribute to increased horsepower and torque. The Competition Series muffler produces a deep, throaty exhaust note that is aggressive on the outside while maintaining moderate noise levels inside the cabin. This makes it ideal for drivers seeking a more commanding exhaust tone without sacrificing comfort or daily drivability.

Installation & Fitment

The MagnaFlow 15118 exhaust system is a direct bolt-on replacement designed specifically for Jeep Wrangler models with the 3.6L V6 engine from 2012 to 2018, including the 2018 Wrangler JK. Thanks to advanced 3D scanning and precision CNC manufacturing, installation is straightforward and requires no cutting, welding, or modifications. The system replaces the exhaust from just behind the catalytic converter to the rear exit, utilizing factory mounting points for a secure and hassle-free fit.

What's Included

• Mandrel-bent 2.5-inch stainless steel main piping
• Single straight-through muffler
• Single straight passenger side rear exit pipe
• 2.5-inch satin welded-on single wall angle cut exhaust tips
• All necessary clamps and hardware for installation

Ideal For

This exhaust system is perfect for Jeep Wrangler owners who want to enhance their vehicle’s performance and sound without compromising reliability or requiring complex installation. It is well suited for off-road enthusiasts, daily drivers, and anyone looking to add a more aggressive exhaust tone and improved throttle response to their 3.6L Jeep Wrangler or Wrangler JK.

MagnaFlow is a performance exhaust manufacturer best known for cat‑back and axle‑back systems, mufflers, and catalytic converters engineered for quality sound and improved flow. Their vehicle-specific exhaust options span muscle, import, and truck applications—making MagnaFlow a staple upgrade when you want a deeper tone, cleaner fitment, and a proven performance-focused exhaust setup.