Turbo Downpipe Milltek Mercedes Classe A W177, Classe CLA C118 X118 - with High-Flow Cat + DPF Bypass

Milltek Sport turbo downpipe with high-flow catalytic converter for Mercedes Classe A W177 / Classe CLA C118 X118

Want a Stage 2 on a Mercedes Classe A W177 / Classe CLA C118 X118 without giving up the catalytic converter? This large-diameter Milltek Sport turbo downpipe pairs a high-flow catalytic converter with a freed-up tube for a more responsive turbo.

Technical specifications

• Milltek reference: SSXMZ154
• Part type: Turbo downpipe with high-flow catalytic converter
• Details: Large-diameter downpipe and high-flow catalytic converter + DPF bypass
• Tube diameter: 80 mm
• Fitting information: Only for models without an additional temperature sensor on the downpipe: ECU remap | Only for models without an additional temperature sensor on the downpipe: ECU remap
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• Mercedes Classe A W177 A45 AMG - A45S AMG 2.0 Turbo 388-421 hp (Hatchback, 2019-2025)
• Mercedes Classe CLA C118 X118 CLA45 and 45S AMG 2.0 Turbo 388-421 hp (Coupé, Shooting Brake, 2020-2025, with DPF)

Not sure whether it fits your vehicle? Contact us with your VIN (chassis number) before ordering.

Our most frequently asked questions

• Is an ECU remap required? Yes. A suitable Stage 2 map is essential to make use of the gain and avoid an engine warning light related to the lambda sensors. It is the question buyers ask most, and the answer is always the same.
• 200-cell high-flow catalytic converter: it maintains genuine emissions control while flowing much more than the original. It is the choice of tuners who want to keep their vehicle clean.

Why choose Milltek Sport?

Milltek Sport designs and manufactures its exhausts in England, with mandrel-bent tubes to preserve the internal diameter and a fit developed on the vehicle. The result: a clean installation without modification, and a tone tuned to remain pleasant for daily driving.

Learn more

• Turbo downpipe: decat or high-flow cat for your Stage 2?