Flowmaster Outlaw Cat-Back Exhaust System

2018–2026 Jeep Wrangler Unlimited 3.6L

817818

Overview:

The Flowmaster Outlaw Cat-Back Exhaust System is engineered specifically for the 2018 through 2026 Jeep Wrangler Unlimited 4-door models equipped with the 3.6L engine, including the Sahara trim with the Hybrid E-torque option. Designed to replace the factory transverse muffler, this system enhances both the performance and sound of your Jeep while maintaining high ground clearance essential for off-road adventures. It is ideal for Jeep enthusiasts seeking a durable, aggressive exhaust upgrade that balances exterior presence with a moderate interior sound level.

By relocating the muffler behind the catalytic converter and tucking it close to the frame, the Outlaw system minimizes exposure to damage from rocks and rough terrain, making it a perfect companion for extreme crawling and trail riding. This cat-back exhaust not only improves exhaust flow but also delivers a distinctive Flowmaster tone that complements the rugged character of the Jeep Wrangler.

Key Features:

The Flowmaster Outlaw Cat-Back Exhaust System offers a combination of durability, sound, and clearance benefits tailored for Jeep Wrangler Unlimited owners:

• Direct replacement for factory transverse muffler on 2018–2026 Jeep Wrangler Unlimited 3.6L models
• High clearance design with muffler relocated behind catalytic converter for off-road protection
• Race-proven Outlaw series muffler delivering an aggressive exterior sound with moderate interior noise
• Single 2.50-inch mandrel-bent stainless steel tailpipe routed over rear sway bar for maximum clearance
• Polished 3.00-inch stainless steel exhaust tip for a refined finish
• Constructed from corrosion-resistant 409S stainless steel for long-lasting durability
• Designed to fit Sahara 3.6L with Hybrid E-torque option as well as other 3.6L Unlimited models
• Does not fit 2-door Jeep Wrangler models

Construction & Design:

Built with 409S stainless steel, the Flowmaster Outlaw Cat-Back Exhaust System offers excellent resistance to corrosion and heat, ensuring longevity even under harsh off-road conditions. The mandrel-bent tubing maintains consistent diameter throughout bends, optimizing exhaust flow and minimizing restrictions. The muffler’s compact design allows it to be positioned high and tight against the frame, protecting it from trail hazards without sacrificing performance.

The polished stainless steel tip adds a clean, aggressive look to the rear of the Jeep, complementing its rugged styling while providing a durable finish that resists discoloration and wear.

Performance & Sound

This cat-back system enhances exhaust flow, which can contribute to improved throttle response and a more engaging driving experience. The Outlaw muffler is engineered to produce a distinctive aggressive tone on the outside, while maintaining a moderate sound level inside the cabin to avoid excessive noise during daily driving. This balance makes it suitable for both spirited off-road excursions and comfortable street use.

Installation & Fitment:

The Flowmaster Outlaw Cat-Back Exhaust System is designed for a direct bolt-on installation, replacing the factory transverse muffler without the need for cutting or welding. It fits 2018–2026 Jeep Wrangler Unlimited 4-door models with the 3.6L engine, including the Sahara trim with Hybrid E-torque. No modifications are required, and the system’s high-clearance routing ensures compatibility with off-road accessories and suspension setups.

What's Included:

• Flowmaster Outlaw series muffler
• Mandrel-bent 2.50-inch stainless steel tailpipe
• Polished 3.00-inch stainless steel exhaust tip
• All necessary mounting hardware and clamps
• Installation instructions

Ideal For:

This exhaust system is perfect for Jeep Wrangler Unlimited owners who want to upgrade their factory exhaust for improved sound, durability, and off-road clearance. It suits off-road enthusiasts who frequently tackle rocky terrain and need a high-clearance exhaust setup, as well as drivers seeking a more aggressive exhaust note without excessive cabin noise. The Outlaw Cat-Back is also a great choice for those who want a reliable, long-lasting exhaust system built from quality materials.

Flowmaster is an iconic exhaust brand famous for signature exhaust tone and performance mufflers, as well as complete axle-back and cat-back systems. Built for muscle cars, trucks, and performance builds, Flowmaster systems are designed to improve flow and deliver the sound character enthusiasts chase.