Audi A4 / S4 Performance Parts & Accessories

Upgrade your Audi A4 or S4 with high-performance parts and accessories from SBX Performance. From intakes and exhaust systems to intercoolers, suspension kits, brakes, wheels, and carbon fiber aero, we stock premium upgrades for both daily driving and track builds. Covering multiple generations including B6, B7, B8, and B9 platforms, our catalog ensures OEM fitment with aftermarket performance for your A4 or S4.