Racingline Sport Lowering Springs Audi S4 B9 Saloon (2016+) – VWR3141S4 MK4 Polo GTI The BlackBox provides protection from

The BlackBox provides protection from the current demands and translation of basic as well as more advanced boost control strategies into a gate position and can be used on single

Fail safe values for critical sensors Yes Dashboard indication of failures Yes

Any unwanted drone is eliminated

Most AOS systems also drain the blow-by back into the oil pan

10bar drop

Racingline Sport Lowering Springs Audi S4 B9 Saloon (2016+) – VWR3141S4 MK4 Polo GTI The BlackBox provides protection fromAudi S4 B9 Racingline Performance Sport Spring Set Lowering Range: 25mm Front and Rear Fits models: Audi S4 B9 2017+ Racingline Performance Sport Springs are engineered to replace the standard springs with a shorter and stiffer spring, while lowering the centre of gravity they will also help to reduce body roll for better handing over the standard springs and while offering fantastic ride quality and comfort, which can be improved from the standard