2022-2026 BMW G42 M240i B58 Valved Catback Exhaust

Give your M240i the sound it deserves with the 3SD Performance BMW G42 M240i B58 Valved Catback Exhaust.

Designed for the 2022-2026 BMW G42 M240i equipped with the B58 3.0L turbocharged inline-six, this valved performance exhaust delivers a deeper, more aggressive exhaust note while maintaining valve control for quieter everyday driving.

Whether your G42 M240i is a daily driver or a tuned B58 build, the 3SD Performance valved exhaust provides the aggressive sound and performance-oriented character that the factory exhaust leaves behind.

Make Your G42 M240i Sound Like a Performance BMW

The B58 is one of BMW's most capable modern turbocharged engines, but the factory M240i exhaust keeps much of its character subdued.

The 3SD Performance G42 M240i Valved Exhaust gives the B58 a deeper idle, stronger tone under acceleration, and a much more aggressive exhaust note throughout the RPM range.

Close the valves when you want a more refined driving experience.

Open them when you want to hear what your B58 can really sound like.

Key Features

• Designed for the BMW G42 M240i
• B58 3.0L turbocharged inline-six compatibility
• Valve-controlled exhaust system
• Aggressive exhaust note with valves open
• Quieter, refined sound with valves closed
• Deeper B58 exhaust tone
• Increased sound under acceleration
• Performance-oriented catback design
• Improved exhaust flow
• Aggressive performance appearance
• Excellent for stock and tuned B58 builds

Valved Exhaust — Sound When You Want It

The valve-controlled design gives your M240i the flexibility of having both a comfortable street exhaust and an aggressive performance exhaust.

Valves Closed

Keep exhaust volume lower for everyday driving, neighborhoods, highway cruising, or whenever you want a more refined sound.

Valves Open

Open the valves for a louder, deeper and significantly more aggressive B58 exhaust note.

For a street-driven G42 M240i, a valved exhaust provides an excellent balance between performance sound and everyday usability.

Built for the BMW B58

The B58 3.0L turbocharged inline-six has become one of BMW's most popular modern performance engines thanks to its combination of power, drivability, and modification potential.

The G42 M240i provides an excellent foundation for everything from a lightly modified daily driver to a serious B58 performance build.

The 3SD Performance exhaust complements upgrades including:

• Performance intake systems
• Turbo inlets
• High-flow downpipes
• ECU tuning
• Flex-fuel setups
• Fueling upgrades
• Upgraded turbochargers

Vehicle Fitment

2022 BMW G42 M240i

2023 BMW G42 M240i

2024 BMW G42 M240i

2025 BMW G42 M240i

2026 BMW G42 M240i

Chassis: BMW G42

Engine: B58 3.0L Turbocharged Inline-6

Perfect for Tuned G42 M240i Builds

The B58 responds exceptionally well to performance modifications, making the M240i one of BMW's most popular modern tuning platforms.

A performance exhaust is an excellent addition to builds equipped with an intake, downpipe, ECU tune, fueling upgrades, or upgraded turbocharger.

The result is a G42 M240i with a stronger exhaust character while retaining the flexibility required from a street-driven BMW.

Aggressive G42 Styling

The M240i combines compact dimensions with modern BMW performance styling, and the exhaust should complement that appearance.

The 3SD Performance system provides a more aggressive rear appearance with upgraded exhaust tips and a performance-oriented design.

Available exhaust-tip options may vary depending on the selected configuration.

Installation

The 3SD Performance G42 M240i exhaust is designed to replace the corresponding factory exhaust components.

Professional installation is recommended to ensure proper exhaust alignment, valve operation, clearances, and exhaust-tip positioning.

Installation requirements may vary depending on vehicle configuration and existing aftermarket modifications.

Frequently Asked Questions

Does this exhaust fit the BMW G42 M240i?

Yes. This system is designed for compatible 2022-2026 BMW G42 M240i models equipped with the B58 engine.

Is this a valved M240i exhaust?

Yes. The system uses exhaust valves to provide both quieter and more aggressive exhaust modes.

Does the G42 M240i have the B58?

Yes. The G42 M240i uses BMW's B58 3.0L turbocharged inline-six engine.

Does a catback exhaust require tuning?

ECU tuning is generally not required solely for installation of a catback exhaust system.

Will this exhaust cause a check-engine light?

A properly installed catback exhaust that retains the factory emissions-control equipment would not normally be expected to cause an emissions-related check-engine light by itself.

Can I use this exhaust with an aftermarket downpipe?

The exhaust can be combined with compatible aftermarket downpipes. Changing the downpipe can significantly increase exhaust volume and alter the overall exhaust tone.

Is this exhaust good for a tuned B58?

Yes. A performance exhaust is well suited to tuned B58 applications and can complement intake, fueling, tuning, and turbocharger upgrades.