Maxton Design - Rear Side Splitters Audi A4 / A4 S-Line / S4 Sedan / Avant B9 G8x M3/M4 Decat downpipes Add your UK registration number

Add your UK registration number or the last 7 characters of your VIN at checkout and we will confirm the correct application

We have installed and used this system ourselves and customer feedback has been consistently excellent

front suspension refresh 3 Series Touring

and feedback has been consistently positive on fitment quality and drivability

this kit delivers a powerful 12

Maxton Design - Rear Side Splitters Audi A4 / A4 S-Line / S4 Sedan / Avant B9 G8x M3/M4 Decat downpipes Add your UK registration numberRear Side Splitters Audi A4 A4 S Line S4 Sedan Avant B9 Enhance your Audi A4 S4 B9 with these sleek, high performance rear side splitters. Expertly designed to be lightweight yet durable, they offer just the right amount of flexibility for a perfect fit and long lasting performance. A must have upgrade for enthusiasts who demand both aggressive styling and functional design. Fitment: Audi A4 S Line Sedan B9 2016 2019 Audi A4 S Line Avant B9 2016 2019