aFe ROCK BASHER Cat-Back Exhaust

2018–2021 Jeep Wrangler 3.6L V6 2-Door

Part #: 49-48074

Overview

The aFe ROCK BASHER Cat-Back Exhaust System is engineered specifically for the 2018 to 2021 Jeep Wrangler 3.6L V6 2-door models. Designed for off-road enthusiasts and performance seekers alike, this exhaust system delivers noticeable horsepower and torque gains while providing a robust, aggressive exhaust tone. Its unique design enhances ground clearance, making it ideal for tackling rugged terrain without compromising durability or sound quality.

Built to improve exhaust flow and overall vehicle performance, the ROCK BASHER system is a direct-fit upgrade that maintains factory mounting points for a hassle-free installation. It’s perfect for Jeep owners looking to boost power and add a commanding presence to their Wrangler’s exhaust note.

Key Features

This cat-back exhaust system combines advanced engineering with durable materials to maximize performance and reliability. Key features include:

• Up to +9 horsepower and +8 lb-ft torque gains, verified by in-house dyno testing
• 3-inch mandrel-bent tubing constructed from 409 stainless steel for smooth, unrestricted exhaust flow
• Free-flowing stainless steel muffler designed to reduce high-pitched tones and produce a powerful, aggressive sound
• Unique shortened pre-axle turndown exit to increase ground clearance and protect the exhaust tip from off-road damage
• 100% hand MIG-welded joints for superior strength and long-lasting durability
• Factory-style bayonet hangers to ensure stable pipe positioning under high vibration and heat conditions
• Direct bolt-on fitment using all factory mounting locations for a straightforward installation process

Construction & Design

The aFe ROCK BASHER exhaust is crafted from premium 409 stainless steel tubing, known for its excellent corrosion resistance and strength. The 3-inch mandrel bends maintain consistent diameter throughout the system, minimizing flow restrictions and enhancing exhaust scavenging. Each weld is hand-crafted using MIG welding techniques to ensure maximum durability and a professional finish.

The system’s standout design feature is the shortened pre-axle turndown exhaust tip, which exits before the rear axle. This design not only protects the tip from damage when navigating rocks and obstacles but also improves ground clearance, a critical factor for serious off-road use.

Performance & Sound

In-house dyno testing confirms that the ROCK BASHER Cat-Back Exhaust delivers up to 9 additional horsepower and 8 lb-ft of torque, translating to improved throttle response and overall engine efficiency. The free-flowing muffler design reduces restrictive backpressure and eliminates harsh high-frequency tones, resulting in a deep, aggressive exhaust note that enhances the Jeep’s rugged character without being overly loud or droning.

Installation & Fitment

This exhaust system is designed for a direct bolt-on installation using all existing factory mounting points, making it a straightforward upgrade for Jeep Wrangler owners. The spherical connection provides a 360-degree sealing surface, ensuring a tight, leak-free fit. Factory-style bayonet hangers secure the exhaust in place, maintaining stability even under high vibration and heat conditions. No cutting, welding, or modifications are required.

Note: This system fits 2-door Jeep Wrangler models equipped with the 3.6L V6 engine from 2018 through 2021 only.

What's Included

• 3" Mandrel bent 409 stainless steel tubing
• Free-flowing stainless steel muffler
• Shortened pre-axle turndown exhaust tip
• Factory-style bayonet hangers and mounting hardware
• Installation instructions

Ideal For

The aFe ROCK BASHER Cat-Back Exhaust is ideal for Jeep Wrangler 2-door owners who demand improved performance and a more aggressive exhaust sound without sacrificing off-road capability. It’s perfect for enthusiasts who frequently tackle rugged trails and want a durable, high-quality exhaust system that enhances both power and ground clearance.

Emissions Note

This product does not require a CARB Executive Order (EO#), making it compliant for use in all 50 states.

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.