MBRP Cat Back Exhaust System

1997–2006 Jeep Wrangler TJ 2.5L & 4.0L

Part #: S5512AL

Overview

The MBRP Cat Back Exhaust System with a single side exit and aluminized steel construction is designed specifically for Jeep Wrangler TJ models from 1997 to 2006 equipped with 2.5L and 4.0L engines. This exhaust system offers a balanced upgrade for Jeep enthusiasts seeking improved exhaust flow, a more aggressive sound profile, and durable materials without a premium price tag. Ideal for daily drivers and weekend adventurers alike, it enhances your Wrangler’s performance and style while maintaining a refined street sound.

Engineered to replace the factory exhaust from the catalytic converter back, this cat back system improves exhaust scavenging and reduces backpressure, contributing to a more responsive throttle and a deeper exhaust note. Its single side exit design complements the classic Jeep look while providing a clean, functional finish.

Key Features

Designed with quality and value in mind, the MBRP Cat Back Exhaust System offers the following key features:

• Constructed from aluminized steel for excellent corrosion resistance in dry climates
• Single side exit with a 3.5-inch rolled angle cut tip for a classic, durable appearance
• Street profile sound that balances aggressive throttle response with comfortable cruising noise levels
• 2.5-inch tubing diameter optimized for improved exhaust flow and performance
• Direct bolt-on fitment for 1997–2006 Jeep Wrangler TJ 2.5L and 4.0L engines, ensuring easy installation
• Mirror-polished T304 stainless steel tip for enhanced durability and style
• 3-year warranty providing peace of mind and product reliability
• Armor Lite series design offering a lightweight yet robust exhaust solution

Construction & Design

The MBRP Cat Back Exhaust System is crafted from aluminized steel, a material known for its excellent resistance to rust and corrosion in dry, salt-free environments. This choice balances durability with affordability, making it an ideal option for Jeep owners who want a reliable exhaust without the premium cost of full stainless steel. The aluminized steel tubing is precision-formed to ensure optimal exhaust flow and fitment.

The exhaust tip is made from high-grade T304 stainless steel with a mirror-polished finish. Its single wall, rolled angle cut design not only adds a classic aesthetic but also withstands the rigors of off-road and daily driving conditions. The 2.5-inch tubing diameter throughout the system ensures smooth exhaust gas evacuation, contributing to improved engine efficiency.

Performance & Sound

This cat back exhaust system features MBRP’s Street Profile sound tuning, delivering a deep, aggressive tone that comes alive under throttle without becoming intrusive during long drives. It enhances the Jeep Wrangler’s natural engine sound, providing a more engaging driving experience whether cruising on the highway or navigating off-road trails. The improved exhaust flow reduces backpressure, which can help with throttle response and overall engine performance.

Installation & Fitment

The MBRP Cat Back Exhaust System is designed for a direct bolt-on installation on 1997 through 2006 Jeep Wrangler TJ models with 2.5L and 4.0L engines. No cutting or welding is required, making it a straightforward upgrade for DIY enthusiasts or professional installers. All mounting points align with factory locations to ensure a secure fit and proper clearance from chassis components.

What's Included

• Aluminized steel cat back exhaust piping
• Single side exit 3.5-inch rolled angle cut stainless steel tip
• All necessary clamps and hardware for installation
• Installation instructions

Ideal For

This exhaust system is perfect for Jeep Wrangler TJ owners seeking a cost-effective upgrade that enhances sound and performance without compromising durability. It suits daily drivers, weekend off-roaders, and enthusiasts who want a more aggressive exhaust note with a classic single side exit look. Its corrosion-resistant aluminized steel construction makes it especially suitable for dry climate regions.

MBRP builds performance exhaust systems engineered for bold sound, improved flow, and durable fitment across gas and diesel trucks, as well as select cars. From workhorse tow rigs to weekend builds, MBRP is known for offering multiple series and configurations so owners can choose the tone and construction that match how hard the vehicle gets driven.