E82 E88 BMW 123i Rear Brake Kit: EBC Yellowstuff 4000 Pads + OE Discs PD03KR112

For E82 and E88 123i owners chasing better rear bite without swapping calipers or machining carriers - this is the no-nonsense, track-day-ready rear axle kit.

• Exactly fits ATE rear calipers on E82/E88 123i (N43B20 engine) - no spacers, no shims, no guesswork
• EBC Yellowstuff 4000 pads (DP42069R): fast road and light track use, strong cold bite, fade-resistant up to ~500°C, bedding-in aided by EBC’s Brake-In coating
• OE-spec plain discs (D1670): G3000 iron, thermic black coated, runout tested - quiet, corrosion-resistant, and compatible with factory wear sensors
• Kit part number PD03KR112 covers both pads and discs - search for E82 rear brake kit, 123i stage 1 brake upgrade, EBC Yellowstuff rear PD03KR112, fast road brakes for E88, or track day rear kit E82

Not for N54/N55 swaps. Not for M Sport or Performance Pack cars with larger rear calipers. Not a full system upgrade - it’s the proven, bolt-on rear half of a balanced fast-road stopper.