Valved Catback Exhaust System for BMW M340i/M440i

PERFORMANCE Series: Premium Sound, OEM Control, Exceptional Value

Upgrade your BMW M340i (G20) or M440i (G22) with the Performance Series 304 Stainless Steel Valved Catback Exhaust. Designed as a high-quality, direct replacement for the B58 3.0L engine, this system delivers a significant acoustic enhancement and improved flow without sacrificing the comfort or control of the factory setup.

Factory Valved Acoustic Control Engineered for perfect integration, this system retains your BMW’s sophisticated acoustic management, allowing you to choose your driving soundtrack.

• Seamless Integration: Designed to utilize your OEM electronic exhaust valve motors (not included), ensuring the exhaust volume and tone remain controllable via your M-button or drive mode selection.

• Dynamic Sound: Delivers a deep, aggressive tone when the valves are open, transforming the sound of the B58, while maintaining a civil volume for daily use when the valves are closed.

• The exhaust uses smooth, mandrel-bent tubing to ensure consistent diameter and an efficient, uninterrupted exhaust gas path, translating to responsive power delivery.

Vehicle Compatibility:

• BMW M340i Sedan: G20 (3.0T B58)

• BMW M440i Coupe: G22 (3.0T B58)

• Model Years: 2019–2023

• Engine: B58 3.0L Turbo

Note: This is a downpipe-back system (connecting directly to the downpipe) and requires transfer of the factory valve motors for full functionality. Professional installation is highly recommended.