Borla S-Type Climber Cat-Back Exhaust System

2018–2024 Jeep Wrangler Unlimited JL 3.6L

Part #: 140829

Overview

The Borla S-Type Climber Cat-Back Exhaust System with a turn down exit is engineered specifically for the Jeep Wrangler Unlimited JL models equipped with the 3.6L engine from 2018 through 2024. Designed to enhance both performance and off-road capability, this exhaust system is ideal for Jeep enthusiasts who demand durability and superior ground clearance during rock crawling, overlanding, and other rugged adventures.

Excluding vehicles with the 2.72:1 Selec-Trac Full Time 4WD and eTorque mild hybrid system, this system delivers the classic Borla S-Type sound signature, combining aggressive exterior tone with a refined, drone-free interior experience. It is a perfect upgrade for drivers seeking improved exhaust flow, enhanced sound, and increased clearance without compromising daily drivability.

Key Features

The Borla S-Type Climber Cat-Back Exhaust System offers a range of advanced features designed to maximize performance and durability:

• 2.5" diameter high clearance design optimized for off-road use
• Turn down exit tip crafted from brushed T-304 stainless steel for rugged style and corrosion resistance
• Classic S-Type exhaust note delivering an aggressive yet refined sound
• Advanced muffler technology eliminates drone and resonance inside the cabin
• Ultra-smooth mandrel bends for maximum exhaust flow and power gains
• Precision CNC manufacturing ensures an exact fit for Jeep Wrangler Unlimited JL 3.6L models
• Constructed entirely from premium T-304 stainless steel, superior to common 409-grade alternatives
• Designed to provide additional ground clearance for rock crawling and off-road obstacles
• Backed by Borla’s Million-Mile Warranty for long-term peace of mind

Construction & Design

Every component of the Borla S-Type Climber Cat-Back Exhaust System is crafted from high-quality T-304 stainless steel, known for its exceptional corrosion resistance and durability under extreme conditions. This premium material outperforms typical T-400 series stainless steel found in many aftermarket systems, ensuring longevity even in harsh off-road environments.

The system features ultra-smooth mandrel bends that maintain consistent pipe diameter throughout, reducing turbulence and backpressure to optimize exhaust flow. The brushed stainless steel turn down tip not only adds a distinctive visual appeal but also enhances clearance, minimizing the risk of damage when navigating rocky terrain.

Precision computer numerical control (CNC) manufacturing guarantees a perfect fit, simplifying installation and ensuring reliable performance without modifications.

Performance & Sound

The Borla S-Type Climber system is engineered to improve exhaust flow, which can contribute to enhanced throttle response and overall engine efficiency. Its signature S-Type muffler design produces a deep, aggressive exhaust tone that is unmistakable outside the vehicle while maintaining a comfortable, drone-free environment inside the cabin. This balance makes it suitable for both spirited driving and daily use.

Installation & Fitment

This cat-back exhaust system is designed for direct bolt-on installation on 2018 to 2024 Jeep Wrangler Unlimited JL models powered by the 3.6L engine, excluding those equipped with the 2.72:1 Selec-Trac Full Time 4WD or eTorque mild hybrid systems. Installation requires no cutting or welding, making it a straightforward upgrade for experienced enthusiasts or professional installers alike.

What's Included

• Borla S-Type Climber Cat-Back Exhaust System with turn down exit
• 2.5" diameter brushed T-304 stainless steel turn down tip
• All necessary mounting hardware and clamps
• Installation instructions

Ideal For

This exhaust system is perfect for Jeep Wrangler Unlimited JL owners who prioritize off-road capability and durability without sacrificing sound quality or daily drivability. It is especially suited for rock crawling, overlanding, and trail riding where additional ground clearance and a robust exhaust system are essential.

Borla is an iconic exhaust manufacturer best known for performance exhaust systems engineered to boost flow and deliver signature sound. With product families like ATAK®, S-Type, and Touring, Borla gives enthusiasts a range of sound levels while targeting real performance gains across the RPM band—perfect for builds where throttle response and the right tone matter as much as horsepower.