MagnaFlow Stainless Steel Performance Exhaust

2012–2018 Jeep Wrangler / 2018 Jeep Wrangler JK 3.6L

15118

Overview:

The MagnaFlow Competition Series Cat-Back Performance Exhaust System 15118 is engineered to elevate your Jeep Wrangler’s exhaust experience with a bold, aggressive tone and proven performance gains. Designed specifically for 3.6L Jeep Wrangler models from 2012 through 2018, this exhaust system replaces the factory exhaust from just behind the catalytic converter to the rear exit. It delivers a deep, resonant sound that commands attention while maintaining a moderate interior noise level suitable for daily driving.

Ideal for Jeep enthusiasts seeking enhanced horsepower and torque without sacrificing reliability or build quality, this exhaust system combines precision engineering with a sporty aesthetic finish. Whether you’re tackling trails or cruising the streets, the MagnaFlow 15118 adds a performance edge and distinctive exhaust note to your Jeep Wrangler.

Key Features:

Built to maximize flow and durability, the MagnaFlow 15118 offers a range of features designed to improve your vehicle’s performance and sound:

• Constructed from 100% corrosion-resistant 409 stainless steel for long-lasting durability
• Mandrel-bent 2.5-inch main piping ensures smooth exhaust flow and reduces restrictions
• Single straight-through muffler design 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 look
• Direct-fit cat-back layout replaces exhaust from near the catalytic converter to the rear, ensuring a precise fit
• Advanced 3D scanning and CNC robotic manufacturing 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 corrosion resistance and strength under high temperatures. All tubing is mandrel bent to maintain consistent diameter and optimize exhaust gas flow, minimizing turbulence and backpressure. The system features a single straight-through muffler that balances aggressive sound with drivability, while the satin-finished welded tips add a refined yet sporty appearance to the rear of your Jeep.

Manufactured using CNC precision robotic technology, each component is engineered for exact fitment and durability. The direct-fit design ensures that no modifications are necessary, preserving the integrity of your Jeep’s undercarriage and simplifying installation.

Performance & Sound

This cat-back exhaust system is designed to enhance your Jeep Wrangler’s performance by improving 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, making it suitable for both spirited driving and everyday use.

Installation & Fitment:

The MagnaFlow 15118 exhaust system is a direct bolt-on replacement for Jeep Wrangler models equipped with the 3.6L engine from 2012 to 2018, including the Wrangler JK in 2018. Thanks to advanced 3D scanning and precision manufacturing, installation is straightforward and requires no cutting or welding. This system replaces the exhaust from just behind the catalytic converter to the rear exit, maintaining factory mounting points for a secure 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 suits 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.