These silicone replacements are replicas of the factory Nissan units, will last much longer & provide ample cushioning for the Brake & Clutch switches A common fault/failure is the original factory pedal bump stops dry out, crack & can fall apart causing brake lights staying on &/or cruise control issues with Z32s. *Brake Pedal have 2 Bump Stops *Clutch Pedal has 1 Bump Stop on assembly & 1 on swingarm