Description
Maxton Design Street Pro Rear Diffuser – Mercedes-AMG A 45 S (W177) Aero Pack – Red
Sharpen the rear of your A 45 S with a Street Pro diffuser that looks purposeful and manages airflow cleanly. The bold red finish adds a motorsport edge while keeping a factory-style fit and sensible ground clearance.
Aero Pack required. Designed for the Mercedes-AMG A 45 S (W177, 2019-) with the factory Aero Pack. Please use our vehicle lookup or see the Vehicle Fitment tab to confirm compatibility.
Made from 10 mm ABS plastic for strength and impact resistance, this diffuser handles daily use and changing weather. A UV-stable coating helps the colour stay true, and the surface arrives protected by a vacuum-sealed film. Painting is not needed; if you choose to paint, apply primer first.
The Street Pro profile helps tidy underbody airflow at speed, which can aid rear stability. It is a visual upgrade first and foremost, designed to complement OEM lines without adding excessive weight.
What you get
- Maxton Design Street Pro rear diffuser – Red
- Vehicle-specific mounting kit
Why choose this part
- 10 mm ABS construction for durability and scratch resistance
- UV and weather resistant, suitable for year-round road use
- Authenticity labelling and TUV MATERIALGUTACHTEN for material quality
- Direct-fit design for the A 45 S Aero Pack rear bumper
For the best result, install carefully using the supplied hardware and follow torque guidance. Always check local regulations if modifying exterior aerodynamics for road use.





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