Bilstein B3 Suspension Genuine Bilstein part 46-258946

Rear shock absorbers, for cars with PASM electronic damper control (option code: 475)
The PAIR of rear shock absorbers designed to match the factory rear dampers used on the Porsche Boxster Spyder and Cayman GT4 fitted with the optional electronic suspension (PASM / active dampers).
SET OF 2, Rear – left and right shock absorbers.

Fits:
for cars with 'PASM' electronic damper control (option code: 475)
Porsche 981SP Boxster Spyder 2016
Porsche 982SP (718) Boxster Spyder 2019>>
Porsche 981C Cayman GT4 2016
Porsche 982C (718) Cayman 2019>>

Diagram ref no 1

Because the set replaces both left and right rear dampers together, it restores balanced suspension response and prevents inconsistent damping that can arise when only one side is replaced. Ideal for maintenance, suspension refresh, or performance-driven restoration. It's recommended to replace both shocks at the same time.

Rear shocks wear out over time due to use, heat, and internal component fatigue. Worn dampers lose damping efficiency and can lead to:
• Harsh, unstable ride with excessive bouncing over bumps
• Degraded handling stability, especially under cornering or heavy braking
• Reduced tyre contact and increased tyre wear
• Less predictable rear-end behaviour and reduced driving confidence

Replacing the rear shocks with a new pair restores original ride quality, suspension balance, rear-end stability, and driving engagement.

You should consider replacing rear shocks if:
•  The ride has become noticeably harsh or unsettled over bumps and uneven roads
•  You feel rear-end instability, sway, or reduced grip under braking or cornering
•  The rear suspension shows uneven behaviour or the struts are old/mileage is high
•   You're performing rear suspension maintenance, upgrades, or full refresh
•   You want to restore factory-correct handling and comfort

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98133303596

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