Audi A4 B9 Tuning – Upgrade for the bestseller

The Audi A4 (B9 series) is the perfect blend of everyday practicality and sportiness. With Maxton Design, you can significantly enhance its sporty character. Whether you drive an A4 Avant S-Line , an S4 , or the powerful RS4 – we have the kit that will sharpen your lines. Select your exact model year (pre-facelift or facelift) below!

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Maxton Design Frontippe
Front splitter
Maxton Design Seitenschweller Erweiterung
Side Skirts
Maxton Dsign Hechdiffusor
Rear diffuser
Maxton Design Seitliche Heckerweitungen
Rear diffuser side
Maxton Design Spoiler Cap
Spoiler Cap
Maxton Design Zentaler Hinterer Splitter
Rear splitter
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Welche Ausführung hat Ihr Audi A4 B9 / B9.5?

Bitte wählen Sie die äußere Fahrzeugausführung. So sehen Sie nur die dafür vorgesehenen Artikel.

A4 Standard / ohne S line A4 S line Exterieur S4 / RS4 / Competition Alle Ausführungen anzeigen

Wichtig: Maßgeblich ist das äußere Ausstattungspaket – nicht Lenkrad, Sitze oder Einstiegsleisten.

21 products

Front Splitter / Cup Schwert / Frontansatz V.3 für Audi A4 S-Line B9 von Maxton Design
Maxton Design Front Lip / Front Splitter V.3 for Audi A4 S-Line B9
Sale price€199,00
5.0
Zentraler Hinterer Splitter für Mercedes-AMG GT C C190 Facelift von Maxton Design
Maxton Design Rear Diffuser (Dual Exit Left) for Audi A4 S-Line B9
Sale price€194,00
Spoiler Cap für Audi A4 B9 8W Avant S-Line von Maxton Design
Maxton Design Spoiler Cap V.2 for Audi A4 B9 8W Avant S-Line
Sale price€144,00
Front Diffusor / Front Splitter / Cup Schwert / Frontansatz V.4 für Audi A4 B9 S line von Maxton Design
Maxton Design Front Lip / Front Splitter V.4 for Audi A4 B9 S line
Sale price€199,00
Front Lippe / Front Splitter / Frontansatz V.1 für Audi A4 B9 S-Line Facelift von Maxton Design
Maxton Design Front Lip / Front Splitter V.1 for Audi A4 B9 S-Line Facelift
Sale price€199,00
Heckdiffusor für Audi A4 / A4 S-Line Sedan / Avant B9 von Maxton Design
Maxton Design Rear Diffuser for Audi A4 / A4 S-Line Sedan / Avant B9
Sale price€194,00
Zentraler Hinterer Splitter für Mercedes-AMG GT C C190 Facelift von Maxton Design
Maxton Design Rear Diffuser (Single Exit Left) for Audi A4 S-Line B9
Sale price€194,00
Spoiler Cap für Audi A4 S-Line Avant B9 von Maxton Design
Maxton Design Spoiler Cap for Audi A4 S-Line Avant B9
Sale price€144,00
Seitenschweller Erweiterung für Audi A4 B9 Facelift S-Line von Maxton Design
Maxton Design Side Skirt Extensions for Audi A4 B9 8W S-line / A4 Competition
Sale price€199,00
Seitliche Heck Diffusor Erweiterung V.2 für Audi A3 Limousine 8V Facelift von Maxton Design
Maxton Design Rear Side Diffuser Extensions V.3 for Audi A4 S-Line B9
Sale price€89,00
Zentraler Hinterer Splitter für Mercedes-AMG GT C C190 Facelift von Maxton Design
Maxton Design Rear Diffuser (Single Exit Left and Right) for Audi A4 S-Line B9
Sale price€194,00
Front Splitter / Cup Schwert / Frontansatz V.1 für Audi A4 S-Line B9 von Maxton Design
Maxton Design Front Lip / Front Splitter V.1 for Audi A4 S-Line B9
Sale price€199,00
Maxton Design Front Lip / Front Splitter V.2 for Audi S4 / A4 S-Line B9
Maxton Design Front Lip / Front Splitter V.2 for Audi S4 / A4 S-Line B9
Sale price€199,00
Front Lippe / Front Splitter / Frontansatz V.2 für Audi A4 B9 S-Line Facelift von Maxton Design
Maxton Design Front Lip / Front Splitter V.2 for Audi A4 B9 S-Line Facelift
Sale price€199,00
Seitliche Heck Diffusor Erweiterung für Audi A4 / A4 S-Line / S4 Sedan / Avant B9 von Maxton Design
Maxton Design Side Rear Diffuser Extension for Audi A4 / A4 S-Line / S4 Sedan / Avant B9
Sale price€89,00
Heckdiffusor V.2 (Doppelflutig Links) für Audi A4 S-Line B9 von Maxton Design
Maxton Design Rear Diffuser V.2 (Dual Exit Left) for Audi A4 S-Line B9
Sale price€194,00
Zentraler Hinterer Splitter Audi A4 B9 S-LINE von Maxton Design
Maxton Design Central Rear Splitter Audi A4 B9 S-LINE
Sale price€114,00
Seitliche Heck Diffusor Erweiterung für Audi A4 B9 8W S-Line von Maxton Design
Maxton Design Side Rear Diffuser Extension for Audi A4 B9 8W S-Line
Sale price€89,00
Zentraler Hinterer Splitter für Audi A4 B9 S-Line Facelift von Maxton Design
Maxton Design Central Rear Splitter for Audi A4 B9 S-Line Facelift
Sale price€249,00
Seitliche Heck Diffusor Erweiterung V.2 für Audi A4 B9 8W S-Line von Maxton Design
Maxton Design Rear Side Diffuser Extension V.2 for Audi A4 B9 8W S-Line
Sale price€159,00
Seitliche Heck Diffusor Erweiterung V.3 für Audi A4 B9 8W S-Line von Maxton Design
Maxton Design Side Rear Diffuser Extension V.3 for Audi A4 B9 8W S-Line
Sale price€199,00

Aerodynamics & Accessories for Audi A4 B9 and RS4

The B9 platform is versatile, and so is our product range. We differentiate precisely between the models to ensure everything fits:

  • A4 S-Line / S4: Our front splitters are bestsellers here, as they make the sporty front end appear even lower. For the rear, we offer diffusers that perfectly frame the tailpipes (or trim pieces on the facelift model).
  • RS4 B9: For the top model, we have parts that make the "widebody" even more imposing.
  • Facelift (B9.5): Pay attention to the model year! Audi changed the headlights and bumpers starting in 2019. Our filters will help you find the right part for your model.
  • Material: Robust ABS plastic in high-gloss black – matching the "Black Optics Package".

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