Akrapovic BMW M440i Gran Coupé (G26) Evolution Line S-BM/T/30H
The Akrapovic BMW M440i Gran Coupé (G26) Evolution Line S-BM/T/30H exhaust system is engineered for enthusiasts who demand uncompromising performance and an aggressive, race-inspired exhaust note. Designed specifically for the BMW M440i Gran Coupé, this system is constructed from high-grade, ultra-light titanium to drastically reduce weight—delivering a 23% reduction compared to the stock exhaust. Finished with hand-crafted carbon-fibre tailpipes and a premium austenitic stainless-steel link pipe set, it not only boosts performance but also enhances the visual appeal of your vehicle.
Optimized Flow and Dual-Valve Technology
Replacing the original single-pipe design with two central link pipes, this system is optimized for maximum exhaust gas flow. This innovative layout minimizes back pressure, allowing the M440i’s straight six-cylinder engine to breathe more freely and deliver improved power output.
A standout feature is the integration of two ECU-controlled valves—one more than the stock configuration. These valves are precisely calculated to tailor the exhaust note: they provide a refined, stock-level tone during normal cruising and switch to a deep, rich, and sporty note as the engine revs climb. A TNG controller is included to activate the additional valve, ensuring a dynamic sound profile that adapts to your driving style.
Tuned Resonators and Acoustic Reflectors
To further enhance the auditory experience, the system incorporates two tuned resonators developed especially for this new engine. These resonators work in concert with the dual valves to produce a deep and aggressive exhaust tone without unwanted drone or streaming. Additionally, two acoustic reflectors are fitted on the tailpipes, guiding the sound into the cabin for an immersive driving experience that truly captures the essence of a track-inspired exhaust note.
Performance Gains and Weight Reduction of Akrapovic BMW M440I Gran Coupé (G26) Evolution Line S-BM/T/30H
Dyno tests on the Akrapovic facility have recorded significant performance improvements:
- Maximum Power Gain: +8.7 kW (approximately +11.8 HP) at 5,600 rpm
- Maximum Torque Increase: +17.1 Nm at 4,100 rpm
- Weight Reduction: The system weighs 21.7 kg compared to the stock 28.2 kg—representing a 23% reduction in weight
These gains translate into sharper throttle response, improved acceleration, and a superior power-to-weight ratio that enhances both on-track performance and overall driving dynamics.
Premium Materials and Construction
Every component of the Evolution Line is engineered to the highest standards:
- Ultra-Light Titanium: Reduces weight and improves handling without sacrificing durability.
- Austenitic Stainless-Steel Link Pipes: Provide optimum gas flow and resist corrosion.
- Hand-Crafted Carbon-Fibre Tailpipes: Not only contribute to the system’s lightweight nature but also add a striking, motorsport-inspired look to the rear of your BMW M440i Gran Coupé.
- In-House Cast Components: Special parts are produced in the Akrapovic foundry to achieve the intricate, complex design required for peak performance.
Fitment, Ordering, and Installation of Akrapovic BMW M440I Gran Coupé (G26) Evolution Line S-BM/T/30H
Important Fitment Notice of Akrapovic BMW M440I Gran Coupé (G26) Evolution Line S-BM/T/30H
- The Evolution Line (Titanium) exhaust system is designed exclusively for non-OPF vehicles. For these vehicles, the ECE type approval certificate is not valid.
- This system also fits on the BMW M440i xDrive Cabriolet (G23).
- An extra stock valve actuator (part number 18 30 8 686 640) is required when installing the slip-on exhaust on compatible BMW models such as the M340i (G20, G21) and M440i (G22, G23, G26).
Ordering Requirement:
Due to packaging reasons, this product is split into two codes: S-BM/T/30H and E-BM/SS/8. Both codes must be ordered to receive the complete system.
Installation:
This plug-and-play cat-back system replaces the stock exhaust from the catalytic converters back. Installation typically takes around 300 minutes and should be performed by an experienced professional. For optimal performance, ECU remapping is recommended to ensure perfect throttle response, durability, and integration with the system’s freer-flowing design.
Emission Compliance
THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE. It is intended for track use only.
Conclusion of Akrapovic BMW M440I Gran Coupé (G26) Evolution Line S-BM/T/30H
The Akrapovic BMW M440i Gran Coupé (G26) Evolution Line S-BM/T/30H is the ultimate upgrade for drivers seeking to maximize their vehicle’s performance and sound on the track. With its advanced dual-valve system, tuned resonators, and premium materials, this exhaust system delivers significant power and torque gains while reducing weight by 23%. Its aggressive yet refined sound profile—enhanced by acoustic reflectors directing the note into the cabin—ensures a thrilling driving experience every time you hit the accelerator. Embrace the cutting-edge engineering of Akrapovic and take your BMW M440i to the next level, keeping in mind that this system is designed for non-OPF vehicles and track use only.
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