Cat Back System: +15HP, Bolt-On Fit & Aggressive Sound

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High-Performance Cat Back System for Enhanced Exhaust Flow and Sound

High-Performance Cat Back System for Enhanced Exhaust Flow and Sound

Discover the ultimate cat back system engineered by Jiangsu Haoli Auto Parts Manufacturing Co., Ltd. (CGW), a leader with over 18 years of expertise in performance exhaust systems. Our cat back systems are precision-designed to replace the stock exhaust from the catalytic converter back, utilizing mandrel-bent tubing and high-flow mufflers to significantly reduce back pressure. This results in noticeable gains in horsepower and torque, improved fuel efficiency, and a deep, aggressive exhaust note that enhances your driving experience. Crafted from premium stainless steel (T304) with robotic TIG welding, each system offers a perfect direct bolt-on fitment, ensuring easy installation without modifications. Backed by advanced 3D scanning and digital modeling, our cat back systems provide a seamless upgrade for various vehicle models, delivering both performance and durability.
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Advantages of the product

Precision Engineering for Maximum Performance

Our cat back systems are meticulously engineered using advanced 3D scanning and digital modeling to ensure a precise fit for each vehicle model. The mandrel-bent piping maintains consistent diameter, reducing exhaust restrictions and optimizing exhaust gas flow. This results in increased horsepower and torque across the RPM range, as confirmed by dyno testing. The high-flow design reduces back pressure, allowing the engine to breathe more efficiently, which also contributes to improved fuel economy under normal driving conditions. Every component is crafted to exact specifications, ensuring a stress-free installation and long-term reliability.

Premium Materials and Superior Craftsmanship

Each cat back system is constructed from high-grade T304 stainless steel, offering exceptional corrosion resistance and durability. The system features robotic TIG welding for precise, leak-proof joints, ensuring structural integrity even under extreme thermal and mechanical stress. Our cat back systems are built to withstand harsh environmental conditions while maintaining a pristine appearance. The use of premium materials not only enhances the lifespan of the product but also provides a deep, resonant exhaust tone that is both aggressive and refined, elevating the overall driving experience.

Perfect Direct Bolt-On Fitment

Our cat back systems are designed to integrate seamlessly with your vehicle’s existing exhaust layout, requiring no cutting, welding, or modifications. Each kit includes all necessary hardware and detailed installation instructions, enabling a straightforward DIY installation. The direct bolt-on design ensures that the system aligns perfectly with the catalytic converter and rear hangers, eliminating any fitment issues. This user-friendly approach saves time and money, allowing enthusiasts to upgrade their exhaust system quickly and confidently, even in a home garage.

Related products

A cat back system is a crucial upgrade for performance enthusiasts looking to unlock their vehicle’s true potential. It comprises the exhaust components from the catalytic converter to the tailpipe, including pipes, resonator, and muffler. The primary function is to reduce exhaust back pressure, allowing the engine to expel gases more efficiently. This leads to increased horsepower and torque, particularly at higher RPMs, and can also improve throttle response and overall engine efficiency. In addition to performance gains, a cat back system dramatically alters the exhaust note, providing a deeper, more aggressive sound that enhances the driving experience. At CGW, we specialize in manufacturing cat back systems that meet the highest standards of quality and precision. Our systems are crafted from T304 stainless steel, known for its durability and resistance to corrosion, ensuring a long lifespan. The use of mandrel bending ensures that the pipe diameter remains consistent, eliminating restrictions that could impede exhaust flow. We incorporate high-flow resonators and mufflers designed to reduce drone while optimizing sound quality. Each system undergoes rigorous testing to guarantee a perfect fit for specific vehicle models, and comes with all necessary hardware for a straightforward installation. Whether you’re seeking track-inspired performance or simply want a more engaging daily drive, our cat back systems deliver proven results. With CGW’s expertise in exhaust technology, you can trust that our cat back systems are engineered to exceed expectations, providing a balance of power, sound, and reliability that sets us apart.

Frequently Questions

What exactly is a cat back system and what does it do?

A cat back system refers to the exhaust components that start from the catalytic converter and extend to the rear of the vehicle. It typically includes pipes, a resonator (if equipped), and a muffler. The system is designed to replace the stock exhaust components to reduce back pressure, which allows exhaust gases to exit more efficiently. As a result, the engine can ‘breathe’ better, leading to gains in horsepower and torque, and often a more aggressive exhaust sound.
By reducing back pressure, a cat back system helps the engine expel exhaust gases more quickly. This allows the engine to ingest fresh air more efficiently, which can increase power output, especially at higher RPMs. Additionally, the decrease in restriction helps the engine operate more efficiently, potentially improving fuel economy during highway driving. Dyno tests often show gains of 5–10 horsepower, depending on the vehicle and existing exhaust setup.
Our cat back systems are designed to produce a sporty, aggressive exhaust note without excessive drone or noise. The sound is carefully tuned through the use of high-flow resonators and mufflers that manage sound frequencies. While the tone is noticeably deeper and louder than stock, it remains comfortable for daily driving. We offer various configurations to suit individual preferences, ensuring you get a sound that is both thrilling and pleasant.
Our cat back systems are specifically engineered and tested to fit a wide range of vehicles. We use 3D scanning and digital modeling to ensure a perfect direct bolt-on fitment for each application. When you choose a system from CGW, you can be confident that it will align seamlessly with your vehicle’s existing exhaust hangers and catalytic converter, requiring no modifications.
Most of our cat back systems can be installed by DIY enthusiasts with basic mechanical skills. The systems are designed for bolt-on installation, and we provide clear instructions along with all necessary clamps and hardware. Typically, you will need to remove the stock components by loosening clamps and hangers, then install the new system in reverse order. If you’re not comfortable working under the vehicle, a professional exhaust shop can complete the installation in about an hour, making it a hassle-free upgrade.

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Customer Testimonials

James T.
A Game-Changing Upgrade

I installed the CGW cat back system on my Audi S3, and the improvement is remarkable. The car feels more responsive, and the sound is absolutely intoxicating—deep and aggressive under acceleration, but quiet and comfortable when cruising. Fitment was spot-on, with no modifications needed. The quality of the T304 stainless steel is top-notch, and the welds are beautiful. This is easily the best investment I’ve made for my car.

Li Wei
Perfect Fit, Incredible Sound

As the owner of a BMW M3, I was skeptical about aftermarket exhausts, but this cat back system exceeded my expectations. It was a direct replacement, and I had it installed in my garage with basic tools. The power gain is noticeable, especially on the highway, and the sound is exactly what I wanted—mean but not obnoxious. The craftsmanship is superb, and the customer service from CGW was excellent. I highly recommend this system to anyone looking for a quality upgrade.

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Dyno-Proven Performance Gains

Dyno-Proven Performance Gains

Our cat back systems are not just for sound—they deliver measurable power increases. Through meticulous design and extensive dyno testing, we ensure that each system optimizes exhaust flow, resulting in improved horsepower and torque. The performance gains are tangible and made for real-world driving, making the upgrade both exciting and practical.
Superior Sound Engineering

Superior Sound Engineering

We understand that sound is a major factor in the exhaust upgrade decision. Our engineering team focuses on fine-tuning the acoustic characteristics of each cat back system using advanced simulation and testing. The result is a deep, sporty tone that amplifies your vehicle’s performance without intruding on cabin comfort. The sound enhances the driving experience, providing a satisfying auditory feedback at every throttle input.

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