aFe Vulcan Series Cat-Back Exhaust

2007–2018 Jeep Wrangler Unlimited JK 3.8L / 3.6L

Part #: 49-38087-B

Overview

The aFe Vulcan Series Cat-Back Exhaust system is engineered specifically for Jeep Wrangler Unlimited JK models from 2007 to 2018 equipped with 3.8L or 3.6L engines. Designed to enhance both performance and style, this exhaust system offers a direct bolt-on fitment that improves exhaust flow while delivering a refined, smooth sound. Ideal for Jeep enthusiasts seeking a durable, high-quality upgrade, the Vulcan Series combines robust construction with aggressive aesthetics to elevate your Wrangler’s presence on and off the road.

Whether you’re tackling trails or cruising city streets, this cat-back exhaust system provides a noticeable improvement in exhaust efficiency and sound quality without compromising daily drivability or factory-like fitment.

Key Features

Built with precision and performance in mind, the aFe Vulcan Series Cat-Back Exhaust includes the following standout features:

• 2-1/2" mandrel-bent 304 stainless steel tubing for maximum strength and smooth exhaust flow
• High-flow 304 stainless steel mufflers designed to produce a smooth, deep exhaust tone
• Quad 3-1/2" diameter black stainless steel clamp-on exhaust tips with laser-etched aFe POWER logo for a distinctive look
• Direct bolt-on installation using factory-style hangers—no cutting or modifications required
• Computer-aided design ensures precise, high-tolerance factory fitment
• 100% MIG-welded construction for race-proven durability and strength
• Manufactured in the USA at aFe POWER’s Corona, California facility

Construction & Design

The Vulcan Series Cat-Back Exhaust is crafted from premium 304 stainless steel, known for its corrosion resistance and long-lasting durability. The 2-1/2" mandrel-bent tubing maintains consistent diameter throughout bends, reducing turbulence and backpressure for improved exhaust flow. Each component is meticulously MIG-welded to ensure structural integrity under demanding conditions.

Advanced computer-aided design technology was employed to create a system that fits precisely to the Jeep Wrangler JK’s factory mounting points, ensuring a seamless installation experience and a clean, factory-quality appearance.

Performance & Sound

This exhaust system enhances your Wrangler’s performance by optimizing exhaust gas flow, which can contribute to improved throttle response and efficiency. The high-flow mufflers deliver a smooth, deep exhaust note that balances aggressive tone with everyday comfort, making it suitable for both spirited driving and daily use.

Installation & Fitment

The aFe Vulcan Series Cat-Back Exhaust is designed as a direct bolt-on replacement for the factory exhaust system on Jeep Wrangler Unlimited JK models from 2007 to 2018 with 3.8L or 3.6L engines. Utilizing factory-style hangers, installation requires no cutting, welding, or modifications, allowing for a straightforward, hassle-free upgrade that can typically be completed with basic hand tools.

What's Included

• 2-1/2" mandrel-bent 304 stainless steel cat-back exhaust tubing
• High-flow 304 stainless steel mufflers
• Quad 3-1/2" diameter black stainless steel clamp-on exhaust tips with laser-etched aFe POWER logo
• All necessary clamps and hardware for installation

Ideal For

This exhaust system is perfect for Jeep Wrangler JK owners who want to improve their vehicle’s exhaust flow and sound without sacrificing durability or requiring complex installation. It suits off-road enthusiasts, daily drivers, and anyone looking to add a bold, aggressive look and tone to their Jeep while maintaining a reliable, long-lasting exhaust solution.

Emissions Note

This product does not require a CARB Executive Order (EO) number. Please verify local regulations before installation to ensure compliance with emissions laws in your area.

aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.