The Eibach Pro-Spacer 15mm enhances Audi A4 handling by widening track width 15mm per side. Made from high-strength aluminum, this pair ensures precise fitment for A4 sedans and wagons. Ideal for street or spirited driving, it improves cornering stability and aesthetics. Bolt-on installation with corrosion-resistant coating requires proper torque. Lightweight and durable, it includes a limited lifetime manufacturer warranty.