Stop Tech ST 40 Brake Kit

I used this brake kit on my 2001 Audi S4 B5. It’s used, but completely functional and a complete used kit, does need new brake pads. Kit includes two, 4 piston calipers with the mounting brackets, two braided metal brake lines and two StopTech rotors. Upgrade your stopping power with this performance-oriented StopTech ST-40 front big brake kit. Originally designed for serious street, spirited driving, or track duty, this kit delivers substantial improvements over stock braking systems. ⸻ Key Features • ST-40 4-piston fixed calipers — Fully forged aluminum design, built for rigidity and heat resistance. Includes caliper bridges to reduce flex, helping provide a firmer pedal feel and more consistent braking performance. (Pads currently need replacement.) • 332 × 32 mm floating rotors — Two-piece design with aluminum hats & iron friction rings (rotors are used). These larger rotors increase thermal capacity to help reduce fade under repeated hard braking. • Braided stainless steel brake lines — Reduce hose expansion under pressure, giving more immediate response, firmer pedal, and better feel. • Hardware & completeness — Comes with both front rotors, calipers, lines, and associated mounting components. (Pads are not usable anymore — included for measurements, but replacement required.)