Milltek Cat-Back Exhaust BMW 3 Series G20-G21, 4 Series G22 - with DPF delete, non-resonated - Quad GT100 Cerakote Black Outlets

Milltek Sport Exhaust System for BMW 3 Series G20-G21 / 4 Series G22

Is the original sound of your BMW 3 Series G20-G21 / 4 Series G22 leaving you wanting more? This Milltek Sport stainless steel exhaust system is the solution most requested by owners: more presence, a true sound signature, and lasting build quality.

Technical specifications

• Milltek part number: SSXBM1163
• Product type: Exhaust system
• Configuration: non-resonated (no intermediate muffler), with valves
• Details: System with DPF delete and no intermediate muffler - quad GT100 black Cerakote outlets
• Tube diameter: 76.2 mm (3 inch)
• Outlets: 4 GT100 outlets, 100 mm each
• Tip finish: black Cerakote (high-temperature ceramic)
• Fitting information: Does not require cutting the OEM 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 before ordering.

Frequently asked questions

• Resonated or non-resonated? This version is non-resonated (no intermediate muffler): it is the most expressive, with more crackle on lift-off. The trade-off: a slight drone may occur at certain engine speeds on long journeys. If you do a lot of motorway driving, compare with the resonated version.
• What about the neighbors in the morning? The valves are controlled as on the OEM system: line closed and discreet on start-up or in comfort mode, fully open in sport mode.
• Fitting: installation requires cutting the OEM exhaust. We recommend having a professional carry out the fitting.

Why choose Milltek Sport?

A benchmark among European tuners, Milltek Sport tunes each of its lines directly on the vehicle. Mandrel bending, careful welds and aerospace-grade stainless steel ensure a line that lasts and sounds right.

Further reading

• Resonated or non-resonated cat-back: which one to choose for your car?
• Exhaust valves explained: how they work and whether to keep them