MagnaFlow Competition Series Cat-Back Performance Exhaust System

2012–2018 Jeep Wrangler Unlimited JK 3.6L V6

Part #: 15117

Overview

The MagnaFlow Competition Series Cat-Back Performance Exhaust System 15117 is a precision-engineered upgrade designed specifically for Jeep Wrangler models equipped with the 3.6L V6 engine from 2012 through 2018, including the Wrangler JK in 2018. This cat-back system replaces the factory exhaust from just behind the catalytic converter to the rear exit, delivering a perfect balance of enhanced power, aggressive sound, and long-lasting durability.

Ideal for Jeep enthusiasts who want to improve throttle response and add a deep, commanding exhaust tone without overwhelming cabin noise, this system fits a wide range of Wrangler trims including Sport, Sahara, Rubicon, and the 75th Anniversary editions. Backed by MagnaFlow’s limited lifetime warranty, it offers a reliable performance upgrade that complements the rugged character of your Jeep.

Key Features

Crafted with advanced engineering and premium materials, the MagnaFlow Competition Series exhaust system delivers measurable performance improvements and a refined aggressive sound. Key features include:

• 100% 409 stainless steel construction for superior corrosion resistance and durability in all weather and off-road conditions
• Mandrel-bent 2.5-inch main piping to optimize exhaust flow and minimize restrictions
• Single straight-through muffler design that balances an aggressive exterior tone with moderate interior sound levels
• 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 design using advanced 3D scanning technology for precise installation with no modifications required
• Dyno-proven gains in horsepower and torque for improved engine performance
• Competition Series tuning that delivers a deep, resonant exhaust note enhancing the Jeep’s rugged personality
• Limited lifetime warranty from MagnaFlow for peace of mind and long-term reliability

Construction & Design

The entire exhaust system is constructed from high-grade 409 stainless steel, known for its excellent resistance to rust and corrosion, making it ideal for off-road use and harsh environments. All tubing is mandrel bent to maintain a consistent diameter through bends, ensuring unrestricted exhaust flow and maximizing performance gains. The system is manufactured with CNC precision robotic technology, guaranteeing consistent quality and perfect fitment.

The satin welded-on single wall angle cut tips provide a refined yet aggressive look that complements the Jeep Wrangler’s rugged styling, giving your vehicle a distinctive and sporty rear appearance.

Performance & Sound

This cat-back exhaust system enhances the 3.6L engine’s output by improving exhaust scavenging and reducing backpressure. Dyno testing confirms noticeable increases in both horsepower and torque, translating to improved throttle response and overall engine efficiency. The Competition Series muffler produces a deep, resonant exhaust note that is aggressive on the outside while maintaining moderate sound levels inside the cabin, making it suitable for spirited driving as well as daily use.

Installation & Fitment

The MagnaFlow 15117 exhaust system features a direct-fit design that replaces the factory exhaust from just behind the catalytic converter to the rear exit. Installation is straightforward and requires no cutting, welding, or additional modifications, thanks to advanced 3D scanning and precise manufacturing tolerances. This system fits the following Jeep Wrangler models equipped with the 3.6L engine:

• Jeep Wrangler (2012–2017) Sport, Sport S, Sahara, Rubicon, 75th Anniversary
• Jeep Wrangler Unlimited (2012–2017) Sport, Sport S, Sahara, Rubicon, 75th Anniversary
• Jeep Wrangler JK (2018) Sport, Sahara, Rubicon, Unlimited Sport, Unlimited Sahara, Unlimited Rubicon

Professional installation is recommended to ensure optimal fit and performance.

What's Included

• Mandrel bent 2.5-inch stainless steel main piping
• Single straight-through muffler
• 2.5-inch satin welded-on single wall angle cut exhaust tip
• All necessary clamps and hardware for installation
• Detailed installation instructions

Ideal For

This MagnaFlow Competition Series exhaust system is perfect for Jeep Wrangler owners who want to enhance their vehicle’s performance and sound without sacrificing durability or fitment quality. 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.

Emissions Note

Please verify local noise and emissions regulations before installation, as this performance exhaust system may not be compliant in all areas.

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.