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Anti Roll Sway Bar
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
ONLY FOR CARS WITHOUT PASM
GEN 1 CARS FITS MANUAL OR TIPTRONIC
Kit includes:
H&R Anti roll bars
H&R Lowering springs 20-25mm
Performance engine mounts
Fits
Porsche 997 Carrera 4 Gen 1 2005-2008
Porsche 997 Carrera 4S Gen 1 2005-2008
Porsche 997 Carrera 4 Gen 2 2009-2012 WITHOUT PASM
Porsche 997 Carrera 4S Gen 2 2009-2012 WITHOUT PASM
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSION997C414
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
ONLY FOR CARS WITH PDK AND PASM
Kit includes:
H&R Anti roll bars
H&R Lowering springs 20-25mm
Performance engine mounts
Fits
Porsche 997 Carrera 4 Gen 2 with PDK WITH PASM 2009-2012
Porsche 997 Carrera 4S Gen 2 with PDK WITH PASM 2009-2012
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSION997C42P4
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 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
ONLY FOR CARS WITH PASM
FOR GEN 1 CARS FITS MANUAL OR TIPTRONIC
Kit includes:
H&R Anti roll bars
H&R Lowering springs 20-25mm
Performance engine mounts
Fits
Porsche 997 Carrera 4 Gen 1 with PASM 2005-2008
Porsche 997 Carrera 4S Gen 1 with PASM 2005-2008
Porsche 997 Carrera 4 Gen 2 with MANUAL WITH PASM 2009-2012
Porsche 997 Carrera 4S Gen 1 with MANUAL WITH PASM 2009-2012
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSION997C41P4
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
ONLY FOR PDK WITHOUT PASM
Kit includes:
H&R Anti roll bars
H&R Lowering springs 30mm
Performance engine mounts
Fits 2008-2012
Porsche 997 Carrera 2 Gen 2 PDK WITHOUT PASM
Porsche 997 Carrera 2S Gen 2 PDK WITHOUT PASM
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSION997C43P
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 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
ONLY FOR CARS WITHOUT PASM
GEN 1 CARS FITS MANUAL OR TIPTRONIC
Kit includes:
Bilstein B8 sprint shocks absorbers
H&R Anti roll bars
H&R Lowering springs 20-25mm
Performance engine mounts
Fits
Porsche 997 Carrera 4 Gen 1 2005-2008
Porsche 997 Carrera 4S Gen 1 2005-2008
Porsche 997 Carrera 4 Gen 2 2009-2012 WITHOUT PASM
Porsche 997 Carrera 4S Gen 2 2009-2012 WITHOUT PASM
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSION997C41
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
ONLY FOR CARS WITH PDK AND PASM
Kit includes:
Bilstein B8 sprint shocks absorbers
H&R Anti roll bars
H&R Lowering springs 20-25mm
Performance engine mounts
Fits
Porsche 997 Carrera 4 Gen 2 with PDK WITH PASM 2009-2012
Porsche 997 Carrera 4S Gen 2 with PDK WITH PASM 2009-2012
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSION997C42P
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 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
ONLY FOR CARS WITH PASM
FOR GEN 1 CARS FITS MANUAL OR TIPTRONIC
Kit includes:
Bilstein B8 sprint shocks absorbers
H&R Anti roll bars
H&R Lowering springs 20-25mm
Performance engine mounts
Fits
Porsche 997 Carrera 4 Gen 1 with PASM 2005-2008
Porsche 997 Carrera 4S Gen 1 with PASM 2005-2008
Porsche 997 Carrera 4 Gen 2 with MANUAL WITH PASM 2009-2012
Porsche 997 Carrera 4S Gen 1 with MANUAL WITH PASM 2009-2012
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSION997C41P
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
ONLY FOR PDK WITHOUT PASM
Kit includes:
Bilstein B8 sprint shocks absorbers
H&R Anti roll bars
H&R Lowering springs 30mm
Performance engine mounts
Fits 2008-2012
Porsche 997 Carrera 2 Gen 2 PDK WITHOUT PASM
Porsche 997 Carrera 2S Gen 2 PDK WITHOUT PASM
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSION997C43P
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 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12

Front & Rear Anti Roll Bar:
- Front - 26mm (adjustable in 3 places)
- Rear - 24mm (adjustable in 4 places)
Please note: if bushes are not included with the kit this means you have to reuse your existing ones.
Fits:
Porsche 997, 4WD, Carrera 4 / Carrera 4S 11/2005>>
incl. Facelift Mod. 2008
except PDK gearbox,
Designed to reduce body roll, increase lateral stiffness and improve handling. All H&R Sway Bar kits have been shot peened and heat treated, and feature precision forged ends - many applications have multiple end link mounting points for adjustability.
H&R Sway Bars are 100% made in Germany, and are powder coated for long lasting good looks and durability on the street and track.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
33239-2
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 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13

Front & Rear Anti Roll Bar:
- Front - 26mm (adjustable in 3 places)
- Rear - 24mm (adjustable in 4 places)
Please note: if bushes are not included with the kit this means you have to reuse your existing ones.
Fits:
Porsche 997, 4WD, Carrera 4 / Carrera 4S 11/2005>> Manual & Tiptonic
Porsche 997, 4WD, Carrera 4 / Carrera 4S 11/2008>>Facelift Mod.
ONLY PDK gearbox,
Porsche 997 Turbo 11/2005>>
ONLY PDK gearbox
without TÜV approval
Designed to reduce body roll, increase lateral stiffness and improve handling. All H&R Sway Bar kits have been shot peened and heat treated, and feature precision forged ends - many applications have multiple end link mounting points for adjustability.
H&R Sway Bars are 100% made in Germany, and are powder coated for long lasting good looks and durability on the street and track.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
33239-5
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 Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- 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
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
Set of 2.

Fits:
Porsche 996 1997-2005
Porsche 997 2004>>
Porsche 986 Boxster 1997-04
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
Diagram Ref No 2. fits inside Ref No. 3
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- 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
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
Set of 2.

Fits:
Porsche 996 1997-2005
Porsche 997 2004>>
Porsche 986 Boxster 1997-04
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
Diagram Ref No 2. fits inside Ref No. 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SPF3722-
The product you are viewing cross references to these numbers
Anti Roll Bars / Sway Bars – Improved Handling and Body Control
Anti roll bars, also known as sway bars, are suspension upgrade components designed to reduce body roll during cornering and improve overall vehicle stability. By linking the left and right sides of the suspension, anti roll bars resist excessive chassis movement, helping the car stay flatter through corners and delivering sharper, more predictable handling.
At Design911, our range of anti roll bars includes high-quality OE replacement and performance upgrade options from trusted suspension brands. Whether you’re refreshing worn factory components or upgrading for fast-road and track use, anti roll bars are one of the most effective ways to enhance handling without compromising ride comfort.
What Do Anti Roll Bars / Sway Bars Do?
Anti roll bars are torsion bars mounted across the
suspension axle that control lateral body movement when cornering. Their main
functions include:
- Reducing body roll during turns
- Improving cornering balance and grip
- Enhancing steering response and driver confidence
- Distributing load more evenly across the suspension
By limiting excessive chassis lean, sway bars allow tyres to maintain better contact with the road, improving traction and control.
Why Upgrade Your Anti Roll Bars?
Upgrading anti roll bars is a popular suspension
modification because it offers:
- Noticeable handling improvements with minimal impact on ride comfort
- Better control during spirited driving or track use
- Improved balance between front and rear suspension
- Reduced understeer or oversteer when correctly matched
Performance anti roll bars are often adjustable, allowing fine-tuning of suspension balance to suit driving style, tyre choice and road conditions.
When Should You Replace or Upgrade Anti Roll Bars?
Anti roll bars should be replaced or upgraded when:
- Factory suspension feels soft or unstable during cornering
- Rubber bushes or mounting hardware are worn or damaged
- Upgrading other suspension components such as springs or dampers
- Preparing a vehicle for fast-road, track day or performance use
Replacing tired components or upgrading to performance sway bars restores precise handling and improves overall driving enjoyment.
At Design911, we supply anti roll bars and suspension upgrades that meet professional workshop standards and enthusiast expectations.