BMW G42 M240i 2 Series Exhaust Systems

Q: Does an "OPF-Back" system require an ECU remap?

No. An OPF-Back (or GPF-Back) system replaces the exhaust components after the particulate filter. This means you get a significant increase in volume and tone without affecting emissions sensors or requiring any software changes.

Q: How much weight can I save with a Titanium system?

Switching to an Akrapovič Titanium Slip-On system can save approximately 4kg to 9kg compared to the stock stainless steel unit. This reduction in weight at the very rear of the car helps improve the G42's already impressive handling balance.

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The BMW G42 M240i is a compact powerhouse, offering agile handling and spirited performance in a stylish coupe package. While the factory exhaust balances refinement and comfort, a performance upgrade unlocks the true character of its B58 turbocharged engine.

At AUTOID, we provide a curated selection of premium exhaust systems for the G42 M240i from top brands including Akrapovič, Milltek, Remus and FI Exhaust. These systems are engineered for precise fitment and superior sound quality, giving your M240i a more aggressive, sporty tone without compromising drivability.

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FAQ

Will these systems fit both the RWD and xDrive models?

Yes, our range of exhausts from Akrapovič, Milltek, and Remus are engineered to fit both the Rear-Wheel Drive and xDrive variants of the G42 M240i and 230i.

Does an "OPF-Back" system require an ECU remap?

No. An OPF-Back (or GPF-Back) system replaces the exhaust components after the particulate filter. This means you get a significant increase in volume and tone without affecting emissions sensors or requiring any software changes.

How much weight can I save with a Titanium system?

Switching to an Akrapovič Titanium Slip-On system can save approximately 4kg to 9kg compared to the stock stainless steel unit. This reduction in weight at the very rear of the car helps improve the G42's already impressive handling balance.

Do valved exhaust systems work with the factory modes?

Yes. Many exhausts for the G42 M240i integrate with the car’s factory driving modes, letting you switch between a quiet cruise and a louder performance sound with ease.

What exhaust systems are available for the BMW G42 M240i?

You can choose from cat-back systems, axle-back exhausts, and valved performance exhausts, all designed to fit the G42 chassis perfectly. Brands such as Akrapovič, Milltek and Remus offer engineered solutions tailored to this model.

Our customer support is available Monday to Friday: 8am-5pm UK Time.

Our collection features cat-back exhausts, axle-back systems, and valved options that integrate seamlessly with the car’s factory driving modes. High-grade stainless steel and titanium options are available for enhanced durability and weight savings, while delivering a refined or track-inspired sound depending on your preferences.

Whether you want a subtle upgrade for everyday driving or a louder, race-inspired exhaust note, our G42 M240i exhaust systems offer the perfect combination of performance, style, and acoustics.

Explore the full range of BMW G42 M240i exhaust systems below.