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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

RSS

RSS
About RSS

RSS for Porsche

RSS parts for Porsche at Design911 focus mainly on suspension and chassis components, aimed at drivers who want sharper response and improved precision for fast-road and track-biased setups.

A Quick Look at RSS

RSS information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.

Choosing the Right Fit for Your Porsche

Where RSS is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector or mounting type where relevant.

  • Typical reasons to choose RSS include reducing compliance at key suspension points, improving steering feel, and helping alignment settings stay consistent under load for fast-road or track use.
  • Common side effects or issues can include increased NVH, squeaks if parts are not lubricated correctly, and binding or “nervous” handling if components are installed or torqued incorrectly, or if the car is not aligned afterwards.
  • Handling that feels too harsh or edgy is often linked to over-stiff choices for the car’s use, or upgrading one area of the chassis without keeping the overall setup balanced.
  • Plan for a proper alignment after fitting suspension or geometry parts, and consider upgrading in stages so you can keep the chassis balance where you want it.
  • Where suspension parts are replaced, checking and correcting geometry is important for predictable handling, even tyre wear, and stability under braking and acceleration.

Browse by Category

If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.

Suspension & Axle

Suspension and axle parts in RSS and related ranges are typically chosen to restore or sharpen your Porsche’s handling, ride comfort, and braking stability. Replacement is usually driven by wear, age, or the desire for a firmer, more controlled setup, especially where knocking, wandering, vibration, or uneven tyre wear are present.

  • Replace suspension components in balanced pairs (left/right) where applicable and schedule an alignment afterwards to avoid instability and irregular tyre wear.
  • Start by diagnosing play and wear in joints, bushes, and mounts rather than replacing parts at random.

Suspension Upgrades

Suspension upgrades are where RSS typically features, helping reduce body roll, improve steering response, and tailor your Porsche for road, fast-road, or track-day use. Choices usually depend on how firm you want the car to feel, desired ride height, and how much adjustability you need.

  • Clarify your goal (comfort versus response) before choosing spring rates, bush materials, or damper setups and plan for correct geometry and, where needed, corner balancing.
  • Poorly matched upgrades or skipped setup work can cause harshness, bottoming, tyre rubbing, or inconsistent handling, so treat the car as a complete system.

Anti Roll Sway Bar

Anti-roll (sway) bars and associated RSS hardware are used to reduce body roll and fine-tune handling balance on Porsche models. They are often upgraded when owners want crisper turn-in, a change in understeer/oversteer balance, or when refreshing a corroded or damaged factory bar and its bushes/links.

  • Most noises blamed on the anti-roll bar are usually from drop links or bushes, so inspect these at the same time and consider replacing them together.
  • Avoid extreme stiffness changes at just one end of the car to keep the handling balance predictable, and expect a small effect on ride comfort over single-wheel bumps.

Control Arms Front

Front control arms and RSS front arm solutions are fitted to restore or refine steering accuracy, braking stability, and wheel geometry on your Porsche. They are typically replaced when bushes or ball joints wear, causing knocking, vague steering, or uneven tyre wear, or when a firmer option is desired for sharper response.

  • Plan a full alignment after replacing front arms and, where possible, renew both sides together for consistent behaviour.
  • Check related components such as top mounts, drop links, and track rods so you do not chase the same noise or vibration after replacement.

Control Arms Rear

Rear control arms are important for keeping rear alignment stable and maintaining predictable handling. RSS components in this area are often chosen when drivers want improved stability under acceleration and over bumps, or when worn bushes are causing rear steer effects, instability, or uneven rear tyre wear.

  • Rear alignment is essential after arm replacement, particularly where camber and toe are adjustable.
  • Assess the full rear linkage set, as refreshing several aged arms and bushes together can give a more consistent and durable result than replacing one item in isolation.

Explore RSS at Design911

View the current RSS range for Porsche at Design911, then filter by model and category to narrow down to the right suspension and chassis parts for your project.

DISPLAYING 1 to 16 (of 56 products)
1 2 3 4
397KIT
Product Information
Product Information
Tarmac Series Alignment Shim Set 12 parts :
(2 OF EACH SIZE)

rss

Fits:
Porsche 991 GT3 / GT3 RS
Porsche 991 GT2 RS

2 x 1mm
2 x 2mm
2 x 3mm
2 x 5mm
2 x 7mm
2 x 10mm

for RSS 2-Piece Lower Control Arm Set or Porsche OE GT3 2-Piece Lower Control Arm Set

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

397KIT
30190
30191
30192
30193
30194
30195
99133105381
99133105380
99133105382

The product you are viewing cross references to these numbers
301
Product Information
Product Information
RSS Lower Control Arm Adjusting Shim - Rear. 

rss

Fits:
Porsche 991 GT3 / GT3 RS
Porsche 991 GT2 RS

Price: One Alignment Shim

RSS alignment shims are designed for use with factory or aftermarket 2-piece motorsport style control arms. Perfect for obtaining more negative camber and adjusting track width during setup.

Shims are available in a variety of sizes including 1mm, 2mm, 3mm, 5mm, 7mm, 10mm and 11mm.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

301
30190
30191
30192
30193
30194
30195
99133105381
99133105380
99133105382

The product you are viewing cross references to these numbers
340/11
Product Information
Product Information
RSS Spacers in Black, 15mm,
with black wheel bolts and wheel tool. For cars with out centre lock wheels 

rss

Fits:
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 Boxster 987 2.7L 2005 -08/08
Porsche Boxster 987 3.2/3.4L 2005-08/08
Porsche Boxster 987 MKII 2.9L 2009-2012
Porsche Boxster S 987 MKII 3.4L 2009-2012
Porsche Boxster 981 2.7L 2012-16
Porsche Boxster S 981 3.4L 2012-16
Porsche Boxster Spyder 3.8L 2016
Porsche Boxster 718 2.0L Manual (300 Bhp)
Porsche Boxster 718 2.0L PDK (300 Bhp)
Porsche Boxster S 718 2.5L Manual (350 Bhp)
Porsche Boxster S 718 2.5L PDK (350 Bhp)
Porsche Boxster T 718 2.0L Manual (300 Bhp)
Porsche Boxster T 718 2.0L PDK (300 Bhp)
Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
Special Offer
3-379
Product Information
Product Information
RSS LCA Outer Arm (Large End) - Bolt On - Replacement Kit

rss

Fits:
Porsche 997 C2  / C4 / GTS

NEW: RSS LCA Outer Arm (Large End) - Pre-Assembled “Bolt On Replacement Solution” Kit includes: 1 outer arm, 1 bearing kit, 1 ball joint kit. Simple plug and play, bolts on to inner monoball arm assembly.




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

3-379
3-379

The product you are viewing cross references to these numbers
TS-2-9972GT3/GT2/RS
Product Information
Product Information
RSS Tarmac Series Stage 2 Suspension Package

rss

Fits:
Porsche 997.2 GT3/RS
Porsche 997.2 GT2/RS

Winner of the "2014 Spanish Tarmac Rallye Championship" Results Matter…not hype" RSS Tarmac Stage 2 Suspension System (TS-2 or TS-2-BC) is the most rigorously engineered, tested, validated, and motorsport homologated aftermarket mono-ball suspension system available for your Porsche .... Period!
RSS TARMAC SERIES Motorsports Suspension Kits have been winning championships, races and setting track records in various forms of motorsport (Sports Car Racing, Endurance Racing and Rally) around the world.
RSS is the preferred suspension of choice of professional race teams, tuners, track day junkies, and driving enthusiasts around the world.
- 2013 ROLEX GRAND-AM GX CHAMPIONS
- 2014 Supplier of PIRELLI GT3 CUP TROPHY USA
- 2014 FiA – GROUP GT RALLY WINNERS
- 2015 PIRELLI WORLD CHALLENGE TC CHAMPIONS

Note: Pictures used for marketing purposes only. Actual product may vary.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

TS-2-9972GT3
370
356
357
307
312
333
363

The product you are viewing cross references to these numbers
382
Product Information
Product Information
Outer ball joint pin rebuild kit for Front bump RSS toe steer link/arm. Fits Part # 370 + 371

rss

Kit includes: 1x Tapered Stud, 1 x Upper Lock Nut, 1 x Lower Lock Nut, 2 x Stud Spacers/Washers.

USER NOTE: A new 382 Kit should be installed once ball joint pin has been removed from hub.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

382
382
370
371

The product you are viewing cross references to these numbers
Special Offer
381
Product Information
Product Information
Outer ball joint pin rebuild kit for RSS Rear toe steer link/arm , Fits part #312 and #301

rss

Kit includes: 1x Tapered Stud, 1 x Upper Lock Nut, 1 x Lower Lock Nut, 2 x Stud Spacers/Washers

USER NOTE: A new 381 Kit should be installed once ball joint pin has been removed from hub

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

381
381
312
301
99633104506
99733104504

The product you are viewing cross references to these numbers
TS-2-997
Product Information
Product Information
RSS Part # TS-2 "Tarmac Stage 2" Suspension Kit (997 C2, C4, GTS, Turbo Chassis).

rss

Winner of the "2014 Spanish Tarmac Rallye Championship" Results Matter…not hype" RSS Tarmac Stage 2 Suspension System (TS-2 or TS-2-BC) is the most rigorously engineered, tested, validated, and motorsport homologated aftermarket mono-ball suspension system available for your Porsche....Period! RSS TARMAC SERIES Motorsports Suspension Kits have been winning championships, races and setting track records in various forms of motorsport (Sports Car Racing, Endurance Racing and Rally) around the world. RSS is the preferred suspension of choice of professional race teams, tuners, track day junkies, and driving enthusiasts around the world. - 2013 ROLEX GRAND-AM GX CHAMPIONS - - 2014 Supplier of PIRELLI GT3 CUP TROPHY USA - 2014 FiA – GROUP GT RALLY WINNERS - 2015 PIRELLI WORLD CHALLENGE TC CHAMPIONS

Fits:
Porsche 997 C2, C4, GTS, Turbo

Note: Pictures used for marketing purposes only. Actual product may vary.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

TS-2-997
370
361
307
312
333
357

The product you are viewing cross references to these numbers
Special Offer
397
Product Information
Product Information
RSS Tarmac series rear alignment / camber shim
Assortment Pack: (2 of each size) 1mm, 2mm, 3mm, 8mm 10mm.

rss

Fits: Porsche OE 2-Piece rear lower control arm set.

Fits:
Porsche 991 GT3/GT3/RS


Made in the USA

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

397
397

The product you are viewing cross references to these numbers
Special Offer
362
Product Information
Product Information
RSS Front LCA litronic bracket.

rss

RSS Part # 362 integrates the optional Litronic or Adaptive Headlamp systems with the Tarmac Series Lower Control Arms or OE 2pc Arms on :

Porsche 986 Front and Rear,
Porsche 987 Front (987 Rear See #364),
Porsche 997 Front and Rear,
Porsche 981 Front axle ( 981 Rear See # 387),
Porsche 991 Front (Except for GT3/RS)

Adapter Bracket for RSS Tarmac Series Rear Lower Control Arm. - 1 Per Car Axle (Located on front and rear drivers side axle, connects to OE Sensor Arm)

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

362
362

The product you are viewing cross references to these numbers
358
Product Information
Product Information
RSS Lower Control Arm Kit for Porsche Models.
Type: None Adjustable Thrust Arm Bushing

rss

RSS Tarmac Series Motorsport Lower Control Arms are specifically engineered for use on lowered vehicles that have reduced travel struts/dampers such as PASM or M030 option. Alternatively if the car is equipped with high quality aftermarket or motorsport coilover kits ie Bilstein PSS10, KW V3 or Ohlins etc.

The Lower Control Arms are NOT COMPATIBLE with "Base Model Suspension" (long travel struts/dampers) or "Base Model struts/dampers with lowering springs."
Caution: Do not install on vehicles with Base Model struts/dampers as it may result in an unsafe driving condition with possibility of suspension bind when struts/dampers are fully extended or in full drop.


Price: Set of Two Control Arms plus 2 x 1mm/2mm/3mm/7mm Shims.

RSS Tarmac Series Control Arms are manufactured from 6061 aerospace grade billet aluminum. This allows for a more uniform molecular structure
at every point of the arm over the cast motorsports arm giving the customer a more durable and inherently stronger part. Manufacturing from billet
aluminum rather than casting results in less impurities in the metal.

• Completely serviceable - for the extreme, repetitive track-day participant, our high-strength steel alloy spherical bearings (with a friction reducing /longevity increasing Teflon liner) can be replaced unlike the motorsports arm, in which case the customer will have to buy a new set of arms if the spherical bearings are worn.
Additionally, anodized surfaces and zinc-plated steel parts allow for better corrosion resistance against the elements.

• Adjustable suspension geometry - adjust dynamic camber values and roll center heights with our unique zinc-plated steel bushings.

• Solid monoball control arm ends offer a more responsive suspension over the factory one-piece rubber-injected control arm (also uses the same high
strength steel alloy spherical bearing found in our control arm monoball kit).

• Unique design provides more gusseting over the motorsports arms for added strength and aesthetically appealing looks.

Please Check Fitting Guide Before Ordering Click Here

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

358
357
358
99634105307
99634105308
99634105309
99634105310
99634105311
99634105312
99634105313
99634105314
99634105315
99634105316
99634105317
99634112290
99634144190
99634112190

The product you are viewing cross references to these numbers
Special Offer
380
Product Information
Product Information
RSS Tarmac Series Lower Control Arm - Outer Ball Joint Pin Rebuild Kit. 1 Kit Per RSS Lower Control Arm (Fits: Part #s: 356, 357, 361, 372, 373, 374 and 366)

rss

Includes:
1 x Tapered Stud,
1 x Upper Lock Nut,
1 x Lower Lock Nut and
4 x Roll Center Spacers/Washers.

1 Kit Per RSS Lower Control Arm (Fits: Part #s: 356, 357, 361, 372, 373, 374 and 366).

USER NOTE: A new 380 Kit should be installed once ball joint pin has been removed from hub. See Lower Control Arm Notes.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

380
380
356
357
361
372
373
374
366

The product you are viewing cross references to these numbers
TS-2F-991GT3
Product Information
Product Information
RSS Front Axle Suspension Kit includes: XL Bump Steer Kit, XL Inner Arm Monoball Kit, Caster Bushings and Camber Shims.

rss

Fits:
Porsche 991 GT3/RS

Note: Pictures used for marketing purposes only. Actual product may vary.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

TS-2F-991GT3
3-307
371
306
308
99634713104
99634713103
99134713100

The product you are viewing cross references to these numbers
TS-2-BC981/982/718
Product Information
Product Information
RSS Tarmac Series Stage 2 Suspension kit includes: Front and Rear Toe/Bump Steer Kit, Rear Toe Lock Out Plates, and Front and Rear Complete Lower Arm kits.

rss

Fits:
Porsche 981 Boxster / Boxster S
Porsche 982 (718) Boxster / Boxster S
Porsche 981 Cayman / Cayman S
Porsche 982 (718) Cayman / Cayman S

RSS Tarmac Stage 2 Suspension System is the most rigorously engineered, tested, validated, motorsport homologated aftermarket suspension system available for your Porsche....Period!

RSS TARMAC SERIES Motorsports Suspension Kits have been winning championships, races and setting track records in various forms of motorsport (Sports Car Racing, Endurance Racing and Rally) around the world. RSS is the suspension of choice of professional race teams, tuners, track day junkies, and driving enthusiasts around the world.
- 2013 ROLEX GRAND-AM GX CHAMPIONS
- 2014 PIRELLI GT3 CUP TROPHY USA
- 2014 FiA – SPANISH RALLY TARMAC CHAMPIONS
- 2015 PIRELLI WORLD CHALLENGE TC CHAMPIONS

Note: Pictures used for marketing purposes only. Actual product may vary.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

TS-2-BC981
371
301
333
361
99634713104
99634713103
99134713100
98133104501
98133104502
99634105307
99634105308
99634105309
99634105310
99634105311
99634105312
99634105313
99634105314
99634105315
99634105316
99634105317
99634112290
99634144190
357
99634112190

The product you are viewing cross references to these numbers
TS-1-BC981/982/718
Product Information
Product Information
RSS Tarmac Series Stage 1 Suspension kit includes: Adjustable Front and Rear Toe/Bump Steer Kit, and Rear Toe Lock Out Plates.

rss

Fits:
Porsche 981 Boxster / Boxster S
Porsche 982 (718) Boxster / Boxster S
Porsche 981 Cayman / Cayman S
Porsche 982 (718) Cayman / Cayman S

RSS Tarmac Series Suspension Kit corrects lowered suspension geometry, eliminates rubber bushing deflection, sharpens your feedback, and improves vehicle handling dynamics.

ADJUSTABLE FRONT & REAR TOE/BUMP STEER KITS - Correct suspension geometry changes in the front & rear of the lowered vehicle and allow additional toe adjustment at the toe steer arm. Features heavy duty, high tolerance monoball rod ends for precise suspension articulation. The rod ends are height adjustable to help reduce/eliminate bump steer.

LOCKING PLATE KIT- Designed for use with our Adjustable Rear Toe/Bump Steer Kit. It replaces the factory eccentric bolt which can come loose under racing and/or aggressive driving conditions. Preserve your alignment settings with this kit.

Note: Pictures used for marketing purposes only. Actual product may vary.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

TS-1-BC981
370
312
333
307
98133104501
98133104502
99634713104
99634713103
99134713100

The product you are viewing cross references to these numbers
TS-2-BC
Product Information
Product Information
RSS Tarmac Series Stage 2 Suspension kit includes: Front and Rear Toe/Bump Steer Kit, Rear Toe Lock Out Plates, and Front and Rear Complete Lower Arm kits.

rss

Fits:
Porsche 987 Boxster / Boxster S
Porsche 987 Cayman / Cayman S

RSS Tarmac Stage 2 Suspension System is the most rigorously engineered, tested, validated, motorsport homologated aftermarket suspension system available for your Porsche....Period!

RSS TARMAC SERIES Motorsports Suspension Kits have been winning championships, races and setting track records in various forms of motorsport (Sports Car Racing, Endurance Racing and Rally) around the world. RSS is the suspension of choice of professional race teams, tuners, track day junkies, and driving enthusiasts around the world.
- 2013 ROLEX GRAND-AM GX CHAMPIONS
- 2014 PIRELLI GT3 CUP TROPHY USA
- 2014 FiA – SPANISH RALLY TARMAC CHAMPIONS
- 2015 PIRELLI WORLD CHALLENGE TC CHAMPIONS

Note: Pictures used for marketing purposes only. Actual product may vary.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

TS-2-BC
370
312
333
361
99634713104
99634713103
99134713100
99633104506
99733104504
99634105307
99634105308
99634105309
99634105310
99634105311
99634105312
99634105313
99634105314
99634105315
99634105316
99634105317
99634112290
99634144190
357
99634112190

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 56 products)
1 2 3 4