BMW G20/G22 M340i/M440i NRP STEEL-Series Valved Cat-back Exhaust System

Key Features

• Premium Construction: Crafted from high-quality T304 stainless steel for exceptional durability and corrosion resistance.

• Optimized Exhaust Flow: Features a large 3.5-inch front section transitioning into unrestricted dual 3-inch piping after the Y-section, maximizing exhaust flow and enhancing engine efficiency.

• Fully Mandrel Bent for Maximum Flow: The exhaust system is fully mandrel-bent to ensure smooth, unrestricted airflow, providing maximum performance gains.

• Precision TIG Welds for High Strength: Meticulously welded using precision TIG welding techniques for superior strength and long-lasting durability.

• Dynamic Sound Control: Electronically controlled valves allow you to switch between a quiet exhaust note and a bold, aggressive sound whenever you choose, in any driving mode. The valve control can be conveniently paired with your car's built-in garage door opener buttons on the rearview mirror, eliminating the need for separate remote controllers after pairing.

• Significant Weight Reduction: Weighs 22.3 lbs less than the factory exhaust, improving vehicle dynamics.

• Reversible to Stock: Bolt-on design that's fully reversible to the stock configuration, requiring no permanent modifications.

• Maintains Factory Warranty and Emissions Compliance: As a cat-back exhaust system, it does not interfere with factory emissions controls or engine components, ensuring your factory warranty remains intact. It's an ideal modification for those who want to enhance their driving experience without affecting emissions compliance or risking warranty issues.

Performance and Sound

Experience noticeable performance gains with optimized exhaust flow. When the valves are open, enjoy an aggressive exhaust note with pronounced turbo spool and assertive overrun—delivering a raw sound from idle to redline. When the valves are closed, the exhaust becomes remarkably quiet, providing a smoother and calmer driving experience, perfect for daily driving without sacrificing performance. With over 25 dB of difference between the open and closed settings, you have the flexibility to adjust the sound to your preference at anytime.

This cat-back exhaust system is one of the best modifications you can make while your car is under warranty. It transforms your driving experience, making the car significantly more enjoyable to drive—all without affecting emissions or voiding your warranty. It's a worry-free upgrade that delivers enhanced performance and sound.

Enhanced Performance When Paired with Our Downpipes

For enthusiasts seeking to unlock the full potential of their BMW M340i or M440i, pairing this cat-back exhaust system with a high-quality downpipe can elevate performance and sound to the next level. We offer both catted high-flow downpipes and free-flow race downpipes, designed to further improve exhaust flow. This combination results in increased horsepower and torque, as well as a more aggressive exhaust note. When combined, the downpipe and exhaust system work synergistically to maximize engine efficiency and deliver an exhilarating driving experience.

Please note: Modifying your vehicle's exhaust system may affect emissions compliance. Ensure you are aware of and comply with all local emissions regulations when considering this upgrade.

Valve Control Options

• Factory Integration: Use your existing factory valve modules to control the exhaust valves through the car's Sport and Sport+ settings or the exhaust button, maintaining seamless integration with your vehicle's controls.

• Stand-Alone Remote (Recommended): Operate the valves independently with our custom remote, allowing you to adjust the exhaust sound at any time, regardless of drive mode. The remote can be conveniently paired with your car's built-in garage door opener buttons on the rearview mirror, eliminating the need to carry an additional device.

Fitment

• 2019 - 2024 BMW M340i (G20)
• 2019 - 2024 BMW M440i (G22)