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Shock Absorbers FRONT
- 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 C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
Bilstein Replacement for the Original Spec
Fits:
Porsche 997 C4 / C4S / Turbo - For vehicles with PASM, For vehicles with electronic suspension control
B4 High Quality direct replacement shock absorbers constructed and finished to Bilstein's high standards often far and above what the car was originally supplied with. They can actually be a performance improvement if replacing plain, none gas charged, oil filled dampers. They dramatically reduce cavitation / oil foaming, thus give for more stable damping forces when driven 'spiritedly'. Some surprising cars come with plain oil filled dampers.
Key Features:
- Twin Tube Damper
- Gas pressurized
- OE damping forces
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BILSTEIN9974B4P
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- 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 C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
Bilstein Replacement for the Original Spec
Fits:
Porsche 997 C4 / C4S / Turbo 2004-2012- Car with PASM electronic damper control (I475)
B4 High Quality direct replacement shock absorbers constructed and finished to Bilstein's high standards often far and above what the car was originally supplied with. They can actually be a performance improvement if replacing plain, none gas charged, oil filled dampers. They dramatically reduce cavitation / oil foaming, thus give for more stable damping forces when driven 'spiritedly'. Some surprising cars come with plain oil filled dampers.
Key Features:
- Twin Tube Damper
- Gas pressurized
- OE damping forces
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
22-147554
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- 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 C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
Bilstein Sports B6 front and rear shock absorbers for Porsche 997 Carrera 4, Carrera 4S and Turbo models from 07/2004 with electronic suspension control, offering PASM-compatible damping tailored to these all-wheel-drive 911s.
What This Product Does These Bilstein B6 Sports dampers replace the original front and rear shock absorbers on PASM-equipped 997 C4, C4S and Turbo models. They are designed to work with the factory electronic suspension control, helping maintain consistent damping behaviour across selected modes while renewing worn or leaking original units.
Functions
- Support PASM-equipped suspension with compatible damping characteristics
- Control vertical wheel and body movement over bumps
- Help maintain stable tyre contact with the road surface
- Assist in keeping the car composed during braking and acceleration
- Work with the factory control system to vary damping by mode
- Contribute to a tidy, well-maintained suspension setup when refreshing other components
Symptoms of Fault
- Excessive bouncing or floaty, unsettled ride
- Knocking noises from the suspension area over bumps
- Visible oil leaks on the damper bodies
- Uneven or accelerated tyre wear
- PASM warning messages or inconsistent behaviour between modes
- Car feeling less composed in quick direction changes
Why Replacement Matters Over time, PASM dampers can suffer from internal wear, oil leakage and age-related deterioration, especially on higher-mileage 997 models. Replacing tired units with PASM-compatible Bilstein B6 Sports shock absorbers helps restore predictable damping response so the adaptive system can function as intended. This supports stable handling, consistent behaviour between modes and a more cohesive feel when combined with service items such as mounts and bushes.
Fits
- Porsche 997 (911) MK1 2005–2008
- 997 MK1 Carrera 4 3.6L 2005–08
- 997 MK1 Carrera 4S 3.8L 2005–08
- 997 MK1 Turbo 2007–09
- Porsche 997 (911) MK2 2009–2012
- 997 MKII Carrera C4 3.6L 2009–12
- 997 MKII Carrera C4S 3.8L 2009–12
- 997 MKII Turbo 2010–13
FAQs
- Do these work with PASM?
They are intended for Porsche models with electronic suspension control and are designed to operate with the PASM system when correctly matched to the vehicle. - Should dampers be replaced in pairs or as a full set?
They are typically renewed in axle pairs (both fronts or both rears), with many owners choosing to replace all four at the same time on higher-mileage cars. - Is an alignment required after installation?
An alignment check is usually recommended after suspension work to confirm geometry is within specification. - Anything else to replace at the same time?
It is common to inspect and, if necessary, renew top mounts, bushes and any worn hardware while access is available.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSION.997.B6KIT
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- 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 C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
Bilstein Replacement for the Original Spec
Fits:
Porsche 997.1 C4 / C4S / Turbo 2004-2008- Car with PASM electronic damper control (I475)
Porsche 997.2 C4 / C4S / Turbo 2009-2012- Car with PASM electronic damper control (I475)
B4 High Quality direct replacement shock absorbers constructed and finished to Bilstein's high standards often far and above what the car was originally supplied with. They can actually be a performance improvement if replacing plain, none gas charged, oil filled dampers. They dramatically reduce cavitation / oil foaming, thus give for more stable damping forces when driven 'spiritedly'. Some surprising cars come with plain oil filled dampers.
Key Features:
- Twin Tube Damper
- Gas pressurized
- OE damping forces
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.
22-3478
The product you are viewing cross references to these numbers
- 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 C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
Bilstein Replacement for the Original Spec
Fits cars:
Porsche 997 C4 / C4S - Cars with Standard Chassis (Option code: I029)
Please Note:
Price is for each damper you will need to buy 2
B4 High Quality direct replacement shock absorbers constructed and finished to Bilstein's high standards often far and above what the car was originally supplied with. They can actually be a performance improvement if replacing plain, none gas charged, oil filled dampers. They dramatically reduce cavitation / oil foaming, thus give for more stable damping forces when driven 'spiritedly'. Some surprising cars come with plain oil filled dampers.
Key Features:
- Twin Tube Damper
- Gas pressurized
- OE damping forces
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
22-147
The product you are viewing cross references to these numbers
- 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 C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
Bilstein Replacement for the Original Spec
Fits:
Porsche 997 C4 3.6L Carrera
Porsche 997 C4 S 3.8L Carrera
Cars with SPORT chassis (Option code: I030/I480)
Without PASM
Fits cars:
Porsche 997 C4 / C4S - Cars with SPORT chassis (Option code: I030/I480)
Please Note:
Price is for each damper you will need to buy 2
B4 High Quality direct replacement shock absorbers constructed and finished to Bilstein's high standards often far and above what the car was originally supplied with. They can actually be a performance improvement if replacing plain, none gas charged, oil filled dampers. They dramatically reduce cavitation / oil foaming, thus give for more stable damping forces when driven 'spiritedly'. Some surprising cars come with plain oil filled dampers.
Key Features:
- Twin Tube Damper
- Gas pressurized
- OE damping forces
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
22-1475
The product you are viewing cross references to these numbers
Front Shock Absorbers for Porsche - Suspension Control & Ride Comfort
Front Shock Absorbers are a critical part of the Porsche suspension system, controlling wheel movement, maintaining tyre contact, and delivering balanced ride comfort and handling precision. By damping suspension travel, front shocks absorb road impacts, reduce body movement, and help keep the vehicle stable during braking, cornering, and acceleration.
Available from Design911, Porsche front shock absorbers are designed to restore factory ride quality, steering response, and suspension performance for both everyday driving and dynamic use.
What Do Front Shock Absorbers Do?
Front shock absorbers manage suspension movement and vehicle control.
Core Functions:
- Control vertical wheel and suspension movement.
- Maintain consistent tyre contact with the road.
- Reduce body roll, dive, and pitch.
- Improve steering response and braking stability.
- Enhance ride comfort and handling balance.
Front shocks play a key role in steering precision and overall chassis behaviour.
Why Do Front Shock Absorbers Fail?
Shock absorbers wear gradually due to constant movement and load.
Common Causes of Failure:
- Internal seal wear leading to oil leakage.
- Loss of damping efficiency over time.
- Heat-related degradation from sustained use.
- Physical damage from potholes or road debris.
- Age and high mileage.
Worn front shocks reduce control, increase stopping distances, and negatively affect ride quality.
When Should Front Shock Absorbers Be Replaced?
Replacing worn front shocks restores safety and handling performance.
Replacement Is Recommended When:
- Excessive body movement or nose dive is noticed.
- Steering feels vague or unstable.
- Fluid leaks are visible on the shock body.
- Uneven tyre wear develops.
- As part of suspension refresh or high-mileage servicing.
Front shocks are often replaced in pairs to maintain balanced suspension performance.
Key Benefits
- Restores precise steering and braking control
- Improves ride comfort and chassis stability
- Maintains correct suspension geometry
- Reduces tyre wear and body movement
- Suitable for road and performance use
