Bilstein

Bilstein B6 rear damper pair with top mounts for the listed Porsche 997 Carrera and Turbo applications. Intended for vehicles equipped with electronic suspension control.

Fits

Porsche 997 3.6L Carrera / 3.6L S / 3.8L Carrera S
Porsche 997 3.6L Carrera 4 / 3.8L Carrera 4S
Porsche 997 3.6L Turbo

• 997 MK1 Carrera 2 3.6L 2005–08
• 997 MK1 Carrera 2S 3.8L 2005–08
• 997 MK1 Carrera 4 3.6L 2005–08
• 997 MK1 Carrera 4S 3.8L 2005–08
• 997 MK1 TURBO 2007–09
• 997 MKII Carrera C2 3.6L 2009–12
• 997 MKII Carrera C2S 3.8L 2009–12
• 997 MKII Carrera C4S 3.8L 2009–12
• 997 MKII Turbo 2010–13
• 997 MKII Carrera C4 3.6L 2009–12

Supplied application start: 07/2004>>. Electronic suspension control is required. Check fitment for your specific vehicle (model, year, engine) before ordering.

What This Product Does

The dampers regulate suspension movement as the rear wheels encounter changes in road surface. Top mounts provide the upper connection between the damper assemblies and the body.

Functions

• Control rear suspension compression and rebound.
• Provide the upper mounting connection for the rear dampers.

Technical Details

• Package: two REAR shock absorbers with top mounts. Damper identifiers: 26-118260 and BA5-B826.
• Bilstein identifies this damper as B6 Performance DampTronic, with monotube construction and compatibility with factory electronic damping controls. ()
• Designed for factory springs; the original spring seat is reused. Collapsed length: 390.0 mm; extended length: 519.5 mm. Lower attachment: clevis; upper attachment: stem. These specifications describe the damper, not the complete package. ()
• 997.1 diagram references: 99733305325, I475, Carrera 2/2S coupé/cabriolet and Carrera 4/4S; 99733304903, I475 Targa/Targa S 2007–08; 99733305324, Turbo coupé/cabriolet 2007–09. Damper quantity shown: two.
• 997.2 diagram reference 99733305333: Carrera 2/2-S coupé PR:030; PR:756; Carrera GTS coupé PR:011,030; Carrera 4/4-S coupé PR:030; 4 GTS coupé PR:019,030. Each damper entry shows quantity two.
• Additional diagram assembly context includes SportClassic, Speedster and Targa/Targa S. These references distinguish suspension versions and should be checked against the vehicle specification.

Symptoms of Fault

• Persistent bouncing or a floating sensation over uneven surfaces.
• Damper leakage or visible damage.
• Knocking around the rear suspension.
• Uneven tyre wear or inconsistent damping behaviour.
• PASM warnings or unexpected differences between selectable modes.

Why Replacement Matters

Renewing worn dampers together addresses deterioration on both sides of the rear axle. Inspect bushes, links and mountings during diagnosis: suspension noises do not necessarily originate in the dampers, and electrical faults can involve wiring or connectors.

FAQs

Should both rear dampers be renewed?
An axle pair avoids retaining an older damper on one side; assess the front suspension separately.

Is alignment needed afterwards?
Arrange a geometry check following suspension work.

Will coding or calibration be necessary?
Requirements depend on the vehicle and work performed. Confirm the installation procedure and inspect the electronic connections before completing the repair.

Bilstein B4 rear shock absorbers with top mounts, supplied as a set of two for Porsche 997 models equipped with PASM. This package combines replacement dampers and mounts for rear suspension renewal.

Fits

Porsche 997 C2 / C2S / C4 / C4S - Car with PASM electronic damper control (I475)

• 997 MK1 Carrera 2 3.6L 2005–08
• 997 MK1 Carrera 2S 3.8L 2005–08
• 997 MK1 Carrera 4 3.6L 2005–08
• 997 MK1 Carrera 4S 3.8L 2005–08
• 997 MK1 TURBO 2007–09
• 997 MKII Carrera C2 3.6L 2009–12
• 997 MKII Carrera C2S 3.8L 2009–12
• 997 MKII Carrera C4 3.6L 2009–12

What This Product Does

The dampers regulate rear suspension movement as the wheels travel over uneven surfaces. Their electronic control compatibility allows the factory PASM system to manage damping, while the top mounts provide the upper connection between each damper assembly and the body.

Functions

• Controls rear suspension oscillation.
• Works with the existing PASM damping controls.
• Connects the rear damper assemblies through their upper mounts.

Technical Details

• Product reference: VA7-E754. B4 replacement specification; rear axle set of two shock absorbers with top mounts.
• Supplied damper specification: twin-tube construction, gas pressurisation and original-equipment damping characteristics.
• 99733305325: I475 application for 997.1 Carrera 2 / Carrera 2S Coupé and Cabriolet, plus Carrera 4 / Carrera 4S, 2005–08; diagram quantity two.
• 99733304903: I475 application for 997.1 Targa / Targa S, 2007–08; diagram quantity two.
• 99733305337: 997.2 Carrera 2 / Carrera 2-S Coupé and Cabriolet, PR:475; Speedster, PR:029,475,503 and PR:475,503; Carrera GTS Coupé and Cabriolet, PR:011,475; 2009–12. Each diagram entry specifies quantity two.
• 99733305337: 997.2 Carrera 4 / Carrera 4-S Coupé and Cabriolet, PR:475; 4 GTS Coupé and Cabriolet, PR:019,475; 2009–12. Each diagram entry specifies quantity two.

Symptoms of Fault

• Repeated rear bouncing after road impacts.
• Oil seepage from a damper body.
• Knocking around the rear suspension mounts.
• Uneven rear tyre wear or an unsettled ride.
• PASM warnings or unexpected changes in damping response.

Why Replacement Matters

Renewing worn rear dampers together avoids combining different wear levels across the axle. Including top mounts allows these associated connections to be renewed during the same repair. Confirm the source of any noise or electronic fault first: bushes, links, wiring and connectors can produce symptoms similar to damper failure.

FAQs

Is this package intended for PASM-equipped cars?
Yes. The supplied application specifies electronic damper control, option I475.

Are top mounts included?
Yes. The package comprises two rear shock absorbers and top mounts.

Will replacement resolve every PASM warning?
No. A warning caused by wiring, connectors or another system component requires separate diagnosis.

Should alignment be checked afterwards?
Arrange a geometry check following suspension work, with adjustment where required.

Bilstein B6 front shock absorbers and fittings set for Porsche Boxster 986 models (2.5, 2.7 and 3.2 S) from 09/1996, suitable for cars with standard suspension or the M030 sport option.

What This Product Does
Bilstein B6 dampers are uprated gas-pressure shock absorbers developed to work with standard ride height on many Porsche applications. On a Boxster 986, they are commonly chosen to tighten body control and improve composure compared with tired original dampers while remaining appropriate for everyday road use.

Functions

• Controls front suspension movement over bumps and uneven surfaces
• Works with existing springs to support correct ride height and geometry
• Helps maintain tyre contact with the road during braking and cornering
• Limits excessive pitch and roll caused by worn or ageing dampers
• Contributes to predictable steering response when the chassis is in good condition
• Integrates with original-style mounts and hardware where specified

Symptoms of Fault

• Front end feels floaty, bouncy or slow to settle after bumps
• Notable dive under braking or increased body roll
• Knocking noises from the front, once mounts and bushes have been checked
• Uneven or accelerated front tyre wear linked to poor damping
• Visible leaks, corrosion or damage on existing front dampers
• Car feels less stable in quick direction changes than expected

Why Replacement Matters

• Ageing front dampers are common on Boxster 986 models and can make the chassis feel loose even if other components are sound
• Refreshing front shock absorbers is a frequent step when owners restore steering precision and overall suspension condition
• Replacing tired units at the same time as arms, bushes and top mounts helps avoid repeat labour and inconsistent behaviour
• Using application-specific Bilstein units supports correct fitment on Porsche platforms
• Maintaining effective damping at the front axle is important for balanced braking and predictable handling characteristics

Fits

• Boxster 986/987/981 (1997–2016)
• Boxster 986 2.5L 1997–99
• Boxster 986 2.7L 1999–02
• Boxster S 986 3.2L 1999–02
• Boxster 986 2.7L 2003–04
• Boxster S 986 3.2L 2003–04

FAQs

• Q: Can these be used with standard springs?
  A: Bilstein B6 dampers are generally intended to work with standard-ride-height springs on many Porsche models; confirm against the specific application details.
• Q: Do both front dampers need to be replaced together?
  A: It is usual practice to renew dampers in axle pairs so left and right sides behave consistently.
• Q: Is an alignment check recommended after fitting?
  A: Geometry should normally be checked after suspension work to confirm correct settings.
• Q: Should top mounts and bushes be changed at the same time?
  A: Many owners replace worn mounts and associated hardware during damper replacement to reduce noise and make the most of the new parts.

Support & Advice
Check fitment for your specific Boxster 986 (model year, engine and suspension option) before ordering, and inspect related suspension components so any additional wear can be addressed during the same job.

Bilstein Sprint B8 front & rear shock absorber – Porsche 996 C2 1997–2005 by Bilstein for Porsche 996 C2 models with sports suspension or lowered springs. The B8 Sprint is a shortened damper option intended for reduced ride height applications, using Bilstein suspension know-how for Porsche fitment.

What This Product Does This front and rear shock absorber set supports damping control on compatible Porsche 996 Carrera 2 models where sport suspension or lowering springs are fitted. The shortened B8 design is commonly used where standard-length dampers are not the intended match for reduced suspension travel.

Functions

• Provides front and rear damping for suitable Porsche 996 C2 applications.
• Works with sports suspension or lowered spring setups.
• Supports suspension travel suited to reduced ride height.
• Helps maintain consistent damping when related units are renewed together.
• Forms part of a suspension refresh or lowered suspension configuration.

Symptoms of Fault

• Floaty ride or weak rebound control.
• Increased body roll or braking dive.
• Bouncing, instability or poor composure over bumps.
• Uneven or cupped tyre wear.
• Visible oil leakage, corrosion or physical damage on the damper body.
• Knocking or clunking, noting that mounts, bushes or links may also be the cause.
• Bottoming out or harshness on a mismatched lowered setup.

Why Replacement Matters

B8 dampers are typically chosen for use with lowering springs because they are designed around reduced ride height and travel. Replacing tired dampers can help restore intended suspension control, but related mounts, bushes and links should be checked at the same time. Wheel alignment is normally required after suspension work.

Fits

• 996 (911) (1997–2005)
• 996 (911) (1997–2005) => 996 C2 3.4L 1997–08/01
• 996 (911) (1997–2005) => 996 C2 3.6L 09/01–2005

Check fitment for your specific vehicle, including model, year and engine, before ordering.

FAQs

• Q: B6 or B8? A: B6 is generally used with standard springs; B8 is commonly selected for lowered springs.
• Q: Is alignment required? A: Yes, alignment should be carried out after suspension work.
• Q: Should other parts be replaced at the same time? A: Inspect mounts, bushes and links, as worn supporting parts can affect the result.
• Q: Will a lowered setup feel firmer? A: It can, depending on the springs, damper condition, ride height and geometry.

Bilstein Sport B6 rear shock absorbers and top mounts kit by Bilstein for Porsche 996 C2 models from 1997–2005. This rear suspension package is intended for cars using standard springs and is listed for models without sports suspension.

What This Product Does The kit renews the rear dampers and upper mounting points. Bilstein B6 dampers use gas-pressure technology and application-specific valving, with the B6 line commonly selected for standard ride height road applications.

Functions

• Replaces rear shock absorbers and top mounts together.
• Supports matched damping across the rear axle.
• Works with suitable standard springs where the application allows.
• Helps address worn, leaking or corroded rear dampers.
• Avoids pairing renewed dampers with aged upper mounts.

Symptoms of Fault

• Floaty or unsettled ride after bumps.
• Poor rebound control or excess body movement.
• Increased roll or pitch compared with normal behaviour.
• Uneven tyre wear or tyre cupping.
• Rear suspension knocking, which may also come from mounts, bushes or links.
• Visible damper leakage, corrosion or damage.

Why Replacement Matters Rear dampers and top mounts wear with age and mileage. Replacing them as a rear kit can help restore consistent suspension operation and reduce the likelihood of noise from old mounting parts. After suspension work, wheel alignment should be checked.

Fits

• Porsche 996 (911) (1997–2005)
• Porsche 996 C2 3.4L (1997–08/01)
• Porsche 996 C2 3.6L (09/01–2005)

Check fitment for your specific vehicle, including model, year, engine and suspension specification, before ordering.

FAQs

• Can B6 dampers be used with standard springs? Often yes, depending on the specific application. This listing is for standard spring applications without sports suspension.
• B6 or B8? B6 is generally used with standard springs, while B8 is commonly selected for lowered springs.
• Is alignment needed after fitting? Yes, alignment should be checked after suspension work.
• Should mounts be renewed at the same time? Renewing mounts with dampers is a sensible approach where mounts are worn or aged.