Injen Stainless Steel Cat-Back Exhaust

2012–2018 Jeep Wrangler Unlimited JK 3.6L V6

Part #: SES5003HT

Overview

The Injen SES5003HT High Tuck Stainless Steel Cat-Back Exhaust is expertly engineered for Jeep Wrangler Unlimited JK models from 2012 through 2018 equipped with the 3.6L V6 Pentastar engine. This exhaust system replaces the factory exhaust from the catalytic converter back, delivering a perfect blend of enhanced performance, aggressive yet refined sound, and rugged durability. Designed for Jeep enthusiasts who demand improved horsepower and torque without sacrificing ground clearance or requiring complex modifications, the high tuck design also optimizes off-road capability by improving approach and departure angles.

Built to complement the Jeep Wrangler’s iconic character, this cat-back exhaust system offers a clean, crisp exhaust tone that enhances the driving experience on and off the road. Whether tackling trails or cruising city streets, the Injen SES5003HT provides a noticeable performance upgrade with a distinctive sound signature.

Key Features

Crafted with precision and performance in mind, the Injen SES5003HT includes the following key features:

• Mandrel-bent 3-inch 304-grade stainless steel tubing for smooth, unrestricted exhaust flow
• High tuck design with mid-point dump down to increase ground clearance and protect the exhaust on rough terrain
• Low-profile round muffler delivering a clean, aggressive exhaust note without excessive drone
• Polished 3.0-inch stainless steel exhaust tips for a refined, rugged appearance
• 100% TIG welded and handcrafted in the USA for superior strength and craftsmanship
• Includes premium stainless steel hardware and custom hangers for a secure, hassle-free installation
• Dyno-proven performance gains of up to +8 horsepower and +8 lb-ft of torque
• Direct bolt-on fitment with no cutting or welding required
• Designed specifically for 4-door Jeep Wrangler JK models to ensure perfect compatibility

Construction & Design

The Injen SES5003HT exhaust system is constructed from premium 304-grade stainless steel, known for its excellent corrosion resistance and long-lasting durability in harsh environments. Mandrel bending technology maintains a consistent tube diameter throughout the system, optimizing exhaust gas flow and minimizing restrictions for maximum performance gains.

Each flange is investment cast for precise fitment, and the entire system is fully TIG welded by hand at Injen’s Pomona, California facility. This meticulous craftsmanship ensures a robust, leak-free exhaust system built to withstand the rigors of both daily driving and off-road adventures.

The high tuck design not only improves ground clearance but also positions the exhaust outlet to reduce the risk of damage when navigating challenging terrain. The polished stainless steel tips add a stylish finishing touch that complements the Jeep’s aggressive and rugged aesthetic.

Performance & Sound

Engineered to enhance both power and sound, the Injen SES5003HT delivers measurable performance improvements. Dyno testing confirms gains of up to 8 horsepower and 8 lb-ft of torque, resulting in improved throttle response and overall engine efficiency. The unique muffler design produces a clean, crisp, and aggressive exhaust tone that enhances the driving experience without introducing excessive drone or harshness inside the cabin.

Installation & Fitment

Installation is straightforward and designed as a direct bolt-on replacement for the factory exhaust on 4-door Jeep Wrangler JK models from 2012 to 2017 and the 2018 JK. No cutting, welding, or additional modifications are necessary, making it an ideal upgrade for enthusiasts seeking a hassle-free installation. The system includes all necessary clamps, premium stainless steel hardware, and custom hangers to ensure a secure and precise fit.

This exhaust system fits the following Jeep models:

• Jeep Wrangler 75th Anniversary 2016
• Jeep Wrangler Rubicon 2012–2017
• Jeep Wrangler Sahara 2012–2017
• Jeep Wrangler Sport 2012–2017
• Jeep Wrangler Sport S 2016
• Jeep Wrangler Unlimited 75th Anniversary 2016
• Jeep Wrangler Unlimited Rubicon 2012–2017
• Jeep Wrangler Unlimited Sahara 2012–2017
• Jeep Wrangler Unlimited Sport 2012–2017
• Jeep Wrangler Unlimited Sport S 2016
• Jeep Wrangler JK Rubicon 2018
• Jeep Wrangler JK Sahara 2018
• Jeep Wrangler JK Sport 2018
• Jeep Wrangler JK Sport S 2018
• Jeep Wrangler JK Unlimited Rubicon 2018
• Jeep Wrangler JK Unlimited Sahara 2018
• Jeep Wrangler JK Unlimited Sport 2018

What's Included

• Mandrel-bent 3-inch stainless steel tubing
• Low-profile round muffler with mid-point dump down
• Polished 3.0-inch stainless steel exhaust tips
• Custom hangers
• Premium stainless steel hardware
• All necessary clamps and mounting components for installation

Ideal For

This exhaust system is ideal for Jeep Wrangler Unlimited JK owners who want to enhance their vehicle’s performance and sound while maintaining or improving off-road capability. It suits enthusiasts looking for a durable, high-quality exhaust that delivers noticeable power gains, a distinctive exhaust note, and a polished appearance without the need for complex installation or modifications. Perfect for daily drivers, weekend adventurers, and off-road enthusiasts alike.

Injen is a performance intake and airflow brand best known for dyno-proven cold air intakes and intake systems built for enthusiast street and track builds. Their catalog spans intake kits, filters, and supporting components designed to increase airflow, sharpen throttle response, and add a more aggressive induction note.