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Suspension Upgrades
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356 1955-1948
Porsche 356A 1959-1955
Porsche 356B 1963-1960
Porsche 356C 1965-1964
Porsche 356SC 1965-1964
The shock absorber for those drivers who prefer a sports suspension but are not particularly interested in lowering the body. Also available in special design complete with reservoir for off-road vehicles.
No risk, more fun
For some people it's important to show what they have, for others it's sufficient to know that they have it. The theme of the discussion here is the sports suspension. The BILSTEIN B6 Sports shock absorber is the ideal solution for drivers revelling in the understatement . The wolf in sheep's clothing snarls, when necessary, but otherwise goes reliably about its work in daily traffic with no lowering of the body whatsoever.
Optimum road holding, enhanced tracking stabilisation and excellent damping force: the BILSTEIN B6 Sports is not only first choice as far as sports tuning is concerned but also in the sphere of safety.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
24-599962KIT
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356 1955-1948
Porsche 356A 1959-1955
Porsche 356B 1963-1960
Porsche 356C 1965-1964
Porsche 356SC 1965-1964
Please Note:
Price is for each damper you will need to buy 2
The shock absorber for those drivers who prefer a sports suspension but are not particularly interested in lowering the body. Also available in special design complete with reservoir for off-road vehicles.
No risk, more fun
For some people it's important to show what they have, for others it's sufficient to know that they have it. The theme of the discussion here is the sports suspension. The BILSTEIN B6 Sports shock absorber is the ideal solution for drivers revelling in the understatement . The wolf in sheep's clothing snarls, when necessary, but otherwise goes reliably about its work in daily traffic with no lowering of the body whatsoever.
Optimum road holding, enhanced tracking stabilisation and excellent damping force: the BILSTEIN B6 Sports is not only first choice as far as sports tuning is concerned but also in the sphere of safety.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
24-599955
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356 1955-1948
Porsche 356A 1959-1955
Porsche 356B 1963-1960
Porsche 356C 1965-1964
Porsche 356SC 1965-1964
Please Note:
Price is for each damper you will need to buy 2
The shock absorber for those drivers who prefer a sports suspension but are not particularly interested in lowering the body. Also available in special design complete with reservoir for off-road vehicles.
No risk, more fun
For some people it's important to show what they have, for others it's sufficient to know that they have it. The theme of the discussion here is the sports suspension. The BILSTEIN B6 Sports shock absorber is the ideal solution for drivers revelling in the understatement . The wolf in sheep's clothing snarls, when necessary, but otherwise goes reliably about its work in daily traffic with no lowering of the body whatsoever.
Optimum road holding, enhanced tracking stabilisation and excellent damping force: the BILSTEIN B6 Sports is not only first choice as far as sports tuning is concerned but also in the sphere of safety.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
24-599962
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356 / 356A / 356B / 356C 09/1947-03/1968
KW Variant 2: Sporty and personalized with adjustable rebound dampening.
This system is designed for the driver who requires not only determining the individual lowering of their vehicle, but having the ability to adjust the damper settings to fine tune the system to their needs.
The adjustable rebound damper allows adjustment of the pitch and roll of the vehicle adapting it to one's own driving preferences.
This product is a special order item allow 24 working days -8 weeks for delivery.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
15271072
The product you are viewing cross references to these numbers

Anti-Roll Bars (ARB’s) play an important role in a vehicle’s suspension system, helping to reduce body roll by transferring cornering load from one side of a vehicle to the other.
Often mounted to the vehicle’s chassis with rubber bushes, these bushes ensure the bar works as intended. To prevent the anti-roll bar from moving laterally within its mounts when turning, OE manufacturers will either bond the bushes to the bar, add dead-stops to the bar itself, or rely solely on the clamping pressure of the rubber.
But what happens when those bushes wear and need to be replaced? Often anti-roll bars with bonded bushes come as a costly complete assembly, so the alternative is to fit a more cost-effective unbonded polyurethane replacement, like the many we offer.
In most cases, friction from the bush will prevent any side-to-side bar movement. Still, when turning aggressively or cornering at higher speeds, a laterally shifting anti-roll bar decreases the efficiency and effectiveness of the bar, changing the dynamics of your suspension system in unpredictable ways. It also poses the risk of the bar fouling on other areas of the vehicle or suspension system.
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Plated/Plugged 26mm, PAIR

Fits:
Porsche 911/912/930 1965-86
Porsche 356 A / 356 B / 356 Pre-A, C And CS Read Notes* (1948-65)
Our Plated & Plugged Hollow torsion bars are the best available. The ends are plugged to prevent moisture entry that rots ordinary hollow bars from the inside out. The entire bar is zinc plated for superior protection.
Excellent quality control means proper spline fit and spring-rate consistency bar-to-bar. Inferior quality competing bars fail on all counts.
• Hollow, light weight
• Plated & Plugged
• Consistent spring rate
• Great spline fit
Upgrade Hollow bars provide a nice weight savings over equivalent spring rate solid bars, especially true of the heavier rear bars. This is a great way to trim extra pounds from the back of your car.
* The size given is a solid-bar-equivalent. Actual hollow bar measures about. 5mm larger.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1-PP911R26
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Plated/Plugged 29mm, PAIR

Fits:
For G50 Transmission
Porsche 911/912/930 1987-89
Our Plated & Plugged Hollow torsion bars are the best available. The ends are plugged to prevent moisture entry that rots ordinary hollow bars from the inside out. The entire bar is zinc plated for superior protection.
Excellent quality control means proper spline fit and spring-rate consistency bar-to-bar. Inferior quality competing bars fail on all counts.
• Hollow, light weight
• Plated & Plugged
• Consistent spring rate
• Great spline fit
Upgrade Hollow bars provide a nice weight savings over equivalent spring rate solid bars, especially true of the heavier rear bars. This is a great way to trim extra pounds from the back of your car.
* The size given is a solid-bar-equivalent. Actual hollow bar measures about. 5mm larger.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1-PP911RT29
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Plated/Plugged 27mm, PAIR

Fits:
Porsche 911/912/930 1965-86
Porsche 356 A / 356 B / 356 Pre-A, C And CS Read Notes* (1948-65)
Our Plated & Plugged Hollow torsion bars are the best available. The ends are plugged to prevent moisture entry that rots ordinary hollow bars from the inside out. The entire bar is zinc plated for superior protection.
Excellent quality control means proper spline fit and spring-rate consistency bar-to-bar. Inferior quality competing bars fail on all counts.
• Hollow, light weight
• Plated & Plugged
• Consistent spring rate
• Great spline fit
Upgrade Hollow bars provide a nice weight savings over equivalent spring rate solid bars, especially true of the heavier rear bars. This is a great way to trim extra pounds from the back of your car.
* The size given is a solid-bar-equivalent. Actual hollow bar measures about. 5mm larger.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1-PP911R27
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
1 kit required per car

Fits
Porsche 356A
Porsche 356B - T5 Models
Change Torsion Bars and Adjust Ride Height
QuickChange spring plates make fast-work of torsion bar re-indexing and replacement.
Screw-type adjuster makes corner balancing and ride height adjustment a breeze. Pairs the high quality of the factory design with ease of servicing.
Setup is fast and easy
If you've ever re-indexed torsion bars to correct ride height, you can really appreciate the benefits of QuickChange.
Used in combination with our QuickChange Torsion Bars and Polybronze bearings, this spring plate allows rapid replacement or re-indexing of torsion bars.
• 5 minute torsion bar changes
• Fast and easy ride-height adjustment
• Accepts standard bushings
QuickChange Torsion Bar Changeout
QuickChange Torsion Bars can be extracted through the QuickChange Spring Plate without removing any bolts. Alignment settings are maintained. You don't even need to remove the wheel from the car. Changing torsion bars is a 5 minute per side operation!
Unlike other aftermarket spring plates, QuickChange Spring Plates bolt the plates together. This prevents the plates "halves" from sliding against each other and eliminates failures and metallic clicking noises common with competing products.
Can be used with any torsion bar and bushing that fits factory spring plates – not included – however QuickChange Torsion bars and PolyBronze Bearings are required to use torsion bar extraction features.
356 used two different systems of of spring plates, cover plate, bushings, and torsion bars
Pre-A, C and CS chassis:
Came equipped with 553mm long torsion bars. Cover plates have no center hole and a 4-nub style bushing. Spring plates have a short "tube" section that is not visible when installed because it does not pass through the cover plate. Outer bushings are larger 48mm Id and inner bushings have a smaller 45mm ID.
Polybronze may be used on these spring plates by fashioning a sleeve for the spring plate to increase its diameter to 48mm, and converting to a round bushing type coverplate.
Alternativley Elephant Racing Polybronze, QuickChange spring plates, and Torsion bars can be used on these cars provided all 4 components (torsion bars, cover plate, spring plate, bushings) are converted together.
A and B chassis:
Came quipped with 627mm long torsion bars. Cover plates have a hole in the center. Spring plates have a visible "tube" section that passes through the cover plate. Both inner and out bushings are larger ID about 48mm.
Elephant Racing Polybronze, QuickChange spring plates, and Torsion bars are all designed for direct fit with this combination.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
2080908
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Sold as a pair (both rear shock absorbers)
OEM Part Number: 91133352100

Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Porsche 356 1950-65
Click 'Zoom in' for large parts diagram.
Diagram ref no 41
Powerflex Heritage Collection. For Modern Day Classics.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collectors car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-413H
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Sold as a pair (both shock rear absorbers)
OEM Part Number: 91133352100

Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Porsche 356 1950-65
Click 'Zoom in' for large parts diagram.
Diagram ref no 41
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-413
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Sold as a pair (both rear shock absorbers)
OEM Part Number: 91133352100
Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Porsche 356 1950-65
Click 'Zoom in' for large parts diagram.
Diagram ref no 41
Powerflex Black Series - Designed for the Track - Ready to Race - Engineered to be the best.
Powerflex Black Series bushes are manufactured using a 95 Shore A compound to provide maximum control of chassis geometry. This compound can be up to 80% more resistant to load than standard rubber and 25% stiffer than our purple performance material.
If your requirements are purely for the ultimate in handling and chassis performance then Powerflex Black Series are unique, offering the most precise and accurate alignment for your chassis.
Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-413BLK
The product you are viewing cross references to these numbers
For use with adjustable control arms

Full encapsulating weather/dust seals are an option with this kit to provide extra protection against the dirty driving conditions both under the car and behind the front wheels. These will work with all Rennline control arms and bump steer kits.
Sold in Pairs
Fits Rod end sizes Male: 1/2", 5/8", 3/4", 14mm, 16mm, 18mm
Female: 1/2", 5/8", 3/4", 14mm, 16mm, 18mm
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Whether re-fitting or a simple shock absorber ex-change, the red "SPECIAL" from KONI is available for every type of car. With optimized saftey, enhanced road holding and higher driving comfort, "SPECIAL" has proven its worth.
Rebound adjustable.
Fits:
Porsche 356 A, B, C 1955-1966 (incl. Super 90, 1600 Super) FRONT
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
80-1044SP20
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356 A, B, C 1955-1966 (incl. Super 90, 1600 Super) REAR
Whether re-fitting or a simple shock absorber ex-change, the red "SPECIAL" from KONI is available for every type of car. With optimized saftey, enhanced road holding and higher driving comfort, "SPECIAL" has proven its worth.
Rebound adjustable.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
80-1191SP20
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
1 kit, req'd per car
Fits
Porsche 356 1948 - 1965
with Long tube spring plates or QuickChange spring plates
Spring plate bearing kit
Want to experience precision driving, faster lap times, improved road feel and feedback?
Our patented PolyBronze suspension bearings set a new standard for performance, ride quality and ease-of-installation. Regular polyurethane/plastic suspension bushings are obsolete!
PolyBronze is a precision bronze bearing encased in a polyurethane jacket. The combination delivers a smooth-ride with the extreme performance of a metal bearing.
✔ No Squeaks
✔ Smooth ride quality
✔ Easy installation
✔ Integral Grease fittings and grooves
Why PolyBronze Bearings Are Superior To Plastic Bushings
Suspension mounts are coarse sheet metal pressings. They tend to be out-of-round and have irregularities that deform ordinary polyurethane bushings, pinching and binding the friction surface. Polyurethane is “grippy” with an inherently high coefficient of friction and combined with pinching polyurethane bushings create a lot of friction. The result is a harsh ride and reduced tire adhesion.
PolyBronze have a rigid bronze bearing core that does not deform. The polyurethane jacket absorbs mount irregularities while the bronze inner bearing remains true, providing a free-moving machined-fit that rides on a precision race. Provided grease fittings make re-lubrication a breeze and a figure 8 groove keeps grease in place.
The combination delivers zero squeaks and friction-free suspension movement. Well suited to street or track, ride quality.
356 used two different systems of of spring plates, cover plate, bushings, and torsion bars
Pre-A, C and CS chassis:
Came equipped with 553mm long torsion bars. Cover plates have no centre hole and a 4-nub style bushing. Spring plates have a short “tube” section that is not visible when installed because it does not pass through the cover plate. Outer bushings are larger 48mm Id and inner bushings have a smaller 45mm ID.
Polybronze may be used on these spring plates by fashioning a sleeve for the spring plate to increase its diameter to 48mm.
Alternatively Elephant Racing Polybronze, QuickChange spring plates, and Torsion bars can be used on these cars provided all 4 components (torsion bars, cover plate, spring plate, bushings) are converted together.
A and B chassis:
Came equipped with 627mm long torsion bars. Cover plates have a hole in the centre. Spring plates have a visible “tube” section that passes through the cover plate. Both inner and out bushings are larger ID about 48mm.
Elephant Racing Polybronze bearings are designed for direct fit with this combination.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
2061601
The product you are viewing cross references to these numbers
Porsche Suspension Upgrades & Components
Your Porsche’s suspension is the key to its handling, comfort, and safety. Upgrading or maintaining your suspension system not only restores factory performance but also unlocks sharper cornering, improved ride quality, and greater driver confidence.
At Design911, we supply a complete
range of suspension upgrade parts for Porsche, including:
- Anti-Roll Bars
- Control Arms
- Lowering Springs
- Drop Links
- Strut Mounts
- Polyurethane Bushes
- Engine / Gearbox Mounts
We stock world-renowned performance brands such as DesignTek, Bilstein, Ohlins, Koni, Powerflex, H&R, KW, and Nitron, trusted in both road and motorsport applications
Why Upgrade
Your Suspension?
- Improved Handling – reduce body roll, sharpen steering response, and corner with confidence
- Better Ride Quality – balance comfort and control for road or track use
- Increased Durability – high-quality components outlast standard rubber parts
- Performance Customisation – tailor ride height, stiffness, and response to your driving style
- Safety & Stability – maintain consistent contact with the road under all conditions
Key Suspension Components
Anti-Roll Bars (Sway Bars)
Reduce body roll during cornering, keeping your Porsche flatter and more
stable. Perfect for spirited road driving or track use.
Lowering Springs
Improve handling and aesthetics by lowering your car’s centre of gravity. Can
enhance steering precision while giving your Porsche a more aggressive stance.
Drop Links
Connect anti-roll bars to the suspension arms. Upgraded drop links ensure
accurate movement transfer and eliminate play that can develop in worn
components.
Strut Mounts
Provide the critical connection between the suspension strut and chassis.
Replacing tired mounts restores steering accuracy and reduces knocking noises.
Polyurethane Bushes
A performance upgrade over standard rubber bushes. Poly bushes (such as Powerflex)
offer increased durability, sharper response, and reduced flex under load.
Engine Mounts
Help stabilise the engine under acceleration, braking, and cornering. Upgraded
mounts reduce drivetrain movement, improving handling feel and gear change
precision.
Common Signs of Suspension Wear
- Knocking or creaking noises over bumps
- Excessive body roll or poor cornering stability
- Uneven tyre wear
- Steering feels vague or less responsive
- Ride height appears uneven
- Vibration or harshness through the chassis
Premium Brands We Supply
Bilstein – legendary German dampers and coilovers for road and trackOhlins – motorsport-grade suspension with advanced adjustability
Koni – durable, high-performance shock absorbers
Powerflex – market-leading polyurethane bushes
H&R & KW – precision-engineered lowering springs and coilovers
Nitron – professional racing suspension technology adapted for road and track
DesignTek – great-value performance upgrades tailored for Porsche
Why Choose Design911
With decades of Porsche expertise, Design911 offers OEM replacement and performance suspension upgrades to suit every model and driving style. Whether you’re refreshing worn parts, improving road comfort, or preparing for track days, our range ensures your Porsche handles exactly how it should.
Explore our full suspension upgrade range today – from everyday replacements to full motorsport systems – and experience the difference in control, comfort, and confidence.