OE Match with PASM
This OE-Match suspension package provides a complete replacement set of four shock absorbers for Porsche 997.1 and 997.2 Carrera 2 / Carrera 2S models equipped with PASM (Electronic Damper Control).
Set includes:
2 × 99734304524 – OE Match Front shock absorbers (left + right)
2 × 99733305332 – OE Match Rear shock absorbers (left + right)
* Car with PASM Electronic Damper Control (option code: 475)
Porsche 997.1 Carrera 2 3.6L
Porsche 997.1 Carrera 2S 3.8L
Porsche 997.2 Carrera 2 3.6L
Porsche 997.2 Carrera 2S 3.8L
The front shocks (99734304524) restore crisp turn-in, front-end stability and controlled body movement, while the rear shocks (99733305332) maintain tyre contact, improve traction and support the rear weight bias of the 997 chassis. Together, this matched set delivers factory-correct ride quality, enhanced composure over uneven surfaces and predictable handling under braking and cornering.
Perfect for owners wanting a full suspension refresh, improved comfort, or the restoration of original Porsche dynamic behaviour after mileage-related wear.
Over time, shock absorbers lose their ability to control movement, leading to a less stable, bouncier and less predictable car. Replacing all four dampers at once ensures perfectly matched suspension behaviour, consistent ride comfort and proper chassis balance across front and rear.
When to Replace:
• Noticeable bounce, float or instability
• Leaking shock oil on any corner
• Front-end dive under braking or rear squat under acceleration
• Rough ride quality, vibration or knocking noises
• Uneven tyre wear or alignment issues
• Full suspension refresh on higher-mileage 997 models
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT997C2
The product you are viewing cross references to these numbers
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
Fits:
Porsche 997 C2 / C2S / C4 / C4S
* Car with PASM electronic damper control (I475)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99733305332
The product you are viewing cross references to these numbers
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
This rear shock absorber is a direct-fit replacement designed for Porsche 997.1 and 997.2 Carrera models, including C2, C4, C2S and C4S. This shock is ideal for replacing worn, leaking or weakened original dampers. It delivers consistent performance, smooth ride comfort and stable handling.
Sold individually, Fits left and right side.
Fits:
Porsche 997 C2 / C2S / C4 / C4S
* Car with PASM electronic damper control (I475)
The rear shock absorber controls suspension movement, ensuring vehicle stability. It reduces vibrations, oscillations, and unwanted body movements, ensuring the tires grip the road. With consistent traction and damping, it ensures balanced cornering behaviour, which defines the Porsche 911's chassis dynamics.
Over time, rear shock absorbers lose their damping ability, causing the car to feel unstable, less controlled and less comfortable. Worn shocks can also reduce cornering grip, create unwanted noise and vibration, and even increase braking distance due to poor weight transfer. Replacing them restores proper suspension behaviour, safety and the precise handling expected from a Porsche 911.
When to Replace:
• Visible oil leakage from the shock body
• Rear end feels loose, bouncy or unstable
• Noticeable vibration, knocking or harshness from the rear
• As part of a full suspension overhaul
• When upgrading to restore consistent ride quality and handling performance
Please Note: Price is for each damper you will need to buy 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99733305332
The product you are viewing cross references to these numbers
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
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Porsche Rear Shock Absorbers for PASM | Design911 Adaptive Suspension Components for Ride Comfort & Precision Handling
Rear shock absorbers for Porsche Active Suspension Management (PASM) are sophisticated components that combine hydraulic damping with electronic control for adaptive performance. By automatically adjusting damping levels based on road conditions, speed, and driving mode, PASM rear shocks deliver exceptional comfort and agility — ensuring your Porsche maintains perfect composure and balance.
At Design911, we offer a comprehensive range of PASM rear shock absorbers, precision-engineered to meet the highest performance standards. Each unit is built using advanced materials, durable seals, and electronic actuators for consistent responsiveness. Ideal for servicing, suspension restoration, or performance upgrades, these components ensure your Porsche’s adaptive suspension continues to deliver maximum stability, traction, and control.
What Do Rear PASM Shock Absorbers Do?
Rear PASM shock absorbers form part of Porsche’s electronically controlled adaptive suspension system, automatically adjusting damping force in real time to maintain balance and ride comfort.
Core Functions:
• Electronically adjust damping stiffness for comfort or sport modes.
• Maintain rear-end stability under acceleration, braking, and cornering.
• Reduce vibration, pitch, and roll for smoother ride quality.
• Improve traction and control in variable road conditions.
• Work seamlessly with Porsche’s electronic control modules for precision
handling.
In optimal condition, PASM rear shocks ensure the perfect blend of agility and comfort that defines Porsche’s suspension engineering.
Why Do Rear PASM Shock Absorbers Fail or Degrade?
Rear adaptive dampers operate under high pressure and constant motion, leading to gradual wear over time — particularly in performance or high-mileage vehicles.
Common Causes of Failure Include:
• Internal hydraulic fluid leaks reducing damping effectiveness.
• Electronic actuator or solenoid malfunction.
• Corrosion or contamination of electrical connectors.
• Seal deterioration from heat or moisture exposure.
• Sensor or control module communication faults.
When PASM shock absorbers begin to fail, drivers may experience harsh ride quality, warning lights, or reduced handling precision — clear indicators that inspection or replacement is necessary.
Why Replace or Upgrade Your Porsche Rear PASM Shock Absorbers?
Replacing worn or faulty adaptive dampers restores full PASM functionality and ensures your Porsche’s suspension delivers comfort and control as designed. Performance-tuned replacements can also enhance handling response and system reliability.
Key Benefits:
• Restores smooth ride quality and adaptive damping accuracy.
• Improves handling precision, traction, and rear-end stability.
• Eliminates suspension faults and uneven ride response.
• Engineered from corrosion-resistant, high-strength materials.
• Fits Porsche 911, Panamera, Cayenne, and Macan models with PASM.
• Perfect for adaptive suspension repairs, restorations, or upgrades.
Design911’s Porsche PASM rear shock absorbers combine engineering excellence with durability — ensuring your Porsche remains refined, balanced, and dynamic across all driving conditions.
Highlights
• Premium Porsche PASM adaptive rear shock absorbers.
• Precision-calibrated for comfort and sport damping modes.
• Restores performance, ride comfort, and suspension balance.
• Compatible with Porsche Active Suspension Management systems.
• High-quality materials for long-term reliability.
• Ideal for maintenance, performance tuning, or full restoration.
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OE Match standard
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Bilstein standard
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Porsche Standard
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Sachs / Boge Standard
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Koni standard
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Bilstein cars with PASM
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Porsche cars with PASM
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Sachs cars with PASM
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Koni cars with PASM
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OE Match Air Suspension
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Bilstein Air Suspension
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Porsche Air Suspension
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Sachs Air Suspension
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Arnott Air Suspension
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Dunlop Air Suspension
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Marelli Air Suspension
