aFe Vulcan Series Cat-Back Exhaust

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

Part #: 49-38087-P

Overview

The aFe Vulcan Series Cat-Back Exhaust system is engineered specifically for the 2007 to 2018 Jeep Wrangler Unlimited JK equipped with 3.8L or 3.6L engines. Designed to enhance both performance and style, this exhaust system offers a direct bolt-on upgrade that improves exhaust flow while delivering a refined, aggressive sound. Ideal for Jeep enthusiasts seeking a durable, high-quality exhaust solution that complements their vehicle’s rugged character without compromising reliability.

Built to withstand the demands of daily driving and off-road adventures, the Vulcan Series Cat-Back exhaust combines robust materials with precision engineering to provide a long-lasting, visually striking upgrade for your Wrangler JK.

Key Features

This cat-back exhaust system incorporates advanced design and premium materials to ensure optimal performance and durability. Key features include:

• 2-1/2" mandrel-bent 304 stainless steel tubing for maximum strength and smooth exhaust flow
• High-flow 304 stainless steel mufflers engineered to produce a smooth, deep exhaust tone
• Quad 3-1/2" diameter polished stainless steel clamp-on exhaust tips with laser-etched aFe POWER logo for a distinctive appearance
• 100% MIG-welded construction for race-proven strength and durability
• Direct bolt-on installation using factory-style hangers—no cutting or modifications required
• Computer-aided design ensures precise fitment and high tolerance factory specifications
• 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 longevity. The 2-1/2" tubing is mandrel bent to maintain consistent diameter throughout bends, promoting unrestricted exhaust flow and reducing backpressure. This results in improved engine efficiency and responsiveness.

Each weld is completed using 100% MIG welding techniques, providing superior strength and durability to withstand harsh driving conditions. The quad polished exhaust tips not only enhance the visual appeal but are also designed to resist discoloration and corrosion over time.

Performance & Sound

This exhaust system is engineered to optimize exhaust flow, which can contribute to improved throttle response and a more engaging driving experience. The high-flow mufflers deliver a smooth, deep tone that enhances the Jeep’s natural engine sound without being overly loud or droning during highway cruising. This balance makes it suitable for both daily driving and spirited off-road use.

Installation & Fitment

The aFe Vulcan Series Cat-Back Exhaust is designed as a direct bolt-on replacement for the factory exhaust on 2007–2018 Jeep Wrangler Unlimited JK models with 3.8L or 3.6L engines. Utilizing factory-style hangers, installation requires no cutting, welding, or modifications, making it a straightforward upgrade for enthusiasts with basic mechanical skills. All necessary hardware is included to ensure a secure and proper fit.

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" polished stainless steel clamp-on exhaust tips with laser-etched aFe POWER logo
• Installation hardware and clamps
• Detailed installation instructions

Ideal For

This exhaust system is perfect for Jeep Wrangler JK owners looking to upgrade their factory exhaust for improved sound, durability, and style. It suits daily drivers, weekend adventurers, and off-road enthusiasts who want a reliable, high-quality exhaust that enhances their vehicle’s performance and appearance without compromising emissions compliance or requiring complex installation.

Emissions Note

This product does not require a CARB Executive Order (EO) number. aFe POWER exhaust systems are engineered to meet or exceed emissions standards where applicable, but always verify local regulations before installation.

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.