Cat-Back Milltek BMW 3 Series G20-G21 M340i, 4 Series G22 M440i - with DPF delete, non-resonated - OEM outlets

Milltek Sport exhaust system for BMW 3 Series G20-G21 / 4 Series G22

Is the factory sound leaving you wanting more? This Milltek Sport stainless steel exhaust system is the most requested choice among owners: more presence, a real sound signature and build quality that lasts.

Technical specifications

• Milltek part number: SSXBM1160
• Part type: Exhaust system
• Configuration: non-resonated (no resonator), with valves
• Details: DPF delete system without resonator - OEM outlets
• Tube diameter: 76.2 mm (3 in)
• Outlets: original outlets kept
• Tip finish: original style
• Fitting information: No need to cut the original exhaust - With valve - ECU remap
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• BMW 3 Series G20-G21 M340i 374 hp (xDrive, Sedan - Touring, 2019-2025, with DPF)
• BMW 4 Series G22 M440i 3.0 twin-turbo 374 hp (xDrive, Coupe, 2020-2025, with DPF)

Not sure about compatibility with your vehicle? Contact us with your VIN (chassis number) before ordering.

Most frequently asked questions

• Resonated or non-resonated? This version is non-resonated (no resonator): it is the most expressive, with more crackle on lift-off. The trade-off is that a slight drone may appear at certain engine speeds on long motorway trips. If you do a lot of motorway driving, compare it with the resonated version.
• What about the neighbors in the morning? The valves are controlled as on the original: closed and discreet at startup or in comfort mode, fully open in sport mode.
• Fitting: installation requires cutting the original exhaust. We recommend having it fitted by a professional.

Why choose Milltek Sport?

Feedback from owners most often highlights the fit quality and a deep tone, present but never harsh. It is the signature of Milltek Sport, a British manufacturer specializing in stainless steel exhaust systems.

Go further

• Resonated or non-resonated cat-back exhaust: which one to choose for your car?
• Valved exhaust: how does it work and should you keep the valves?