Upgrade parts under the bonnet to keep up with your performance demands.
RacingLine is pretty famous for Intakes. Check out our new Carbon Intake for RS4 & S4 (B9).
It's what you've been waiting for. New for Audi S4 (B9), our own Performance Software: OEM+
Our B9 S4 Sport Springs will lower your car just perfectly, and give sharper handling responses.
It's all about the details. Check out our S Tronic blades, body brace and engine bay dress-up parts here.