Magnaflow Competition Series Catback

2017–2021 Honda Civic Si Sedan 2.0L Turbo

Part #: 19394

Overview

The Magnaflow Competition Series Catback Exhaust System is engineered for Honda Civic Si Sedan owners who demand maximum performance and an aggressive exhaust note. Designed specifically for the 2017-2021 models, this system enhances your vehicle’s sound and power output, making it ideal for spirited driving, track days, or enthusiasts seeking a more commanding presence on the road. Crafted with precision and built for durability, the Competition Series delivers a significant upgrade over the stock exhaust, providing increased horsepower and torque while reducing weight for improved handling and acceleration.

Whether you're a dedicated tuner or a daily driver looking for a bold sound and improved performance, this catback exhaust system helps you unlock your vehicle's full potential. Its aggressive tone and high-flow design make it a standout choice for Honda Civic Si owners who want to make a statement without sacrificing quality or reliability.

Key Features

The Magnaflow Competition Series Catback Exhaust System boasts several advanced features designed to optimize performance and durability:

• All mandrel-bent tubing ensures smooth airflow and reduces turbulence, maximizing exhaust efficiency and power gains.
• Constructed from high-quality 409 stainless steel with a high-temp satin black coating, providing excellent corrosion resistance and a sleek, aggressive appearance.
• Increased horsepower and torque thanks to optimized flow paths and reduced backpressure, helping your Civic Si deliver more spirited performance.
• Lifetime construction warranty guarantees long-lasting durability and peace of mind for your investment.
• Made in the USA, ensuring strict quality control and craftsmanship standards.
• Designed for a deep, aggressive exhaust note that commands attention and enhances your vehicle's sporty character.

Construction & Design

The Magnaflow Competition Series Catback features a robust construction with mandrel-bent tubing that maintains consistent diameter throughout the system, minimizing flow restrictions. The high-temp satin black coating not only adds a stealthy aesthetic but also protects against heat and corrosion, ensuring longevity even under demanding conditions. The system's design emphasizes lightweight construction without compromising strength, contributing to improved vehicle handling and responsiveness. Precision TIG welding and high-quality materials ensure a perfect fit and finish, making installation straightforward and reliable.

Installation & Fitment

The Magnaflow Competition Series Catback is a bolt-on upgrade that requires no cutting or welding. It mounts directly to the factory exhaust mounting points, ensuring a hassle-free installation process. Basic hand tools are sufficient, and no special tuning is necessary to enjoy the benefits of the system. For optimal performance, some users may choose to pair this exhaust with other modifications or ECU tuning, but it is fully functional as a standalone upgrade.

• Easy bolt-on installation with factory mounting points
• No cutting, drilling, or tuning required
• Compatible with 2017-2021 Honda Civic Si Sedan 2.0L Turbo

What's Included

• Complete catback exhaust system with mandrel-bent tubing
• High-flow muffler with aggressive tone
• All necessary clamps and hardware for installation
• Detailed installation instructions

Ideal For

• Honda Civic Si Sedan owners seeking maximum performance upgrades
• Enthusiasts wanting a deep, aggressive exhaust sound
• Drivers looking to reduce weight and increase horsepower and torque
• Track day participants and spirited drivers