Porsche 991 Cup Cayman GT4 Clubsport 4 x caliper bleed nipples
Porsche Cayman GT4 Clubsport GT4CS Porsche 991 Cup (with ABS use 331 compound) 4 x caliper bleed nipples
11 (sprint), 12 (endurance), 13 (high friction), 331 (ABS-friendly endurance)
28mm
