FMIC.Pro electronically controlled Twin Pipe catback exhaust system for Mercedes-Benz C-Class C400 / C450 / C43 AMG W205 3.0T 2015–2023
The FMIC.Pro catback exhaust system is designed to improve exhaust flow and deliver a distinctly sportier sound.
The 76 mm (3.0”) pipe diameter combined with the muffler design produces a deeper and fuller sound under load while maintaining driving comfort during normal driving – especially when the exhaust valves are closed.
The exhaust system is made entirely of SS304 stainless steel, which resists corrosion and high operating temperatures. CNC-bent pipes ensure uniform geometry and precise fitment to the original mounting points. Installation is straightforward and follows the plug & play principle. All joints are TIG welded under argon gas shielding, ensuring clean, finished, and fully sealed weld seams – this is essential for long-term durability.
CNC-machined 10 mm thick flanges are used at the connection points. They increase structural rigidity, reduce the risk of deformation caused by thermal cycles, and ensure even sealing pressure across the entire connection surface.
The exhaust system features integrated electronically controlled exhaust valves that regulate the exhaust gas path at the rear of the system:
Valves closed – exhaust gases pass through the entire muffler system, producing a refined sound and good driving comfort for everyday driving.
Valves open – exhaust gases bypass the rear muffler, making the exhaust sound louder, more direct, and sportier.
Thanks to this solution, the driver can adjust the exhaust sound characteristics according to driving conditions and personal preferences. The valves are controlled by the included control unit and two remote controls, allowing the valve position to be changed instantly.
To achieve the best performance potential, it is recommended to use the FMIC.Pro catback exhaust system with a high-flow downpipe. This is particularly recommended for turbocharged engines.
Twin Pipe design corresponds to the solution used in the original AMG Performance Exhaust (U78) available as an accessory. In this design, two separate pipes run through the center section of the exhaust system. This allows for a more direct exhaust gas flow and improves the exhaust sound characteristics.
In cars equipped with a GPF/OPF particulate filter and the original AMG Performance Exhaust, the connection method may vary depending on the equipment version. Before installation, the type and connection method of the car's original exhaust system must be verified.
Pipe diameter: 76 mm / 3.0”
Engine: 3.0 V6 Biturbo (M276)
Compatibility:
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Mercedes-Benz C400 4MATIC W205 Sedan 3.0 V6 333 hp 2015–2020
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Mercedes-Benz C450 AMG 4MATIC W205 Sedan 3.0 V6 367 hp 2015–2016
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Mercedes-AMG C43 4MATIC W205 Sedan 3.0 V6 367 hp / 390 hp 2016–2021
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Mercedes-AMG C43 4MATIC C205 Coupé 3.0 V6 367 hp / 390 hp 2016–2023