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Porsche > 997 (911) MK1 2005-2008 > 997 MK1 Carrera 4 3.6L 2005-08 > Suspension Upgrades >

Lowering Springs

Lowering Springs

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DISPLAYING 1 to 6 (of 6 products)
Road & track spring and anti roll bar handling kit Porsche 997 Carrera 4 and Carrera 4S 2005-2012 - 29188-2, 33239-2, 3609309625
1
Road & track spring and anti roll bar handling kit Porsche 997 Carrera 4 and Carrera 4S 2005-2012
SUSPENSION997C414
Product Information
Product Information
Optimum fast road and track handling kit, enhanced tracking stabilisation and excellent damping force, a collection from the top suspension brands

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Related, superseded, cross reference or alternative numbers for comparison.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
29188-2
33239-2
3609309625

The product you are viewing cross references to these numbers
Road & track spring and anti roll bar handling kit Porsche 997 Carrera 4 and Carrera 4S with PASM 2005-2012 - 29188-2, 33239-2, 3609309625
1
Road & track spring and anti roll bar handling kit Porsche 997 Carrera 4 and Carrera 4S with PASM 2005-2012
SUSPENSION997C41P4
Product Information
Product Information
Optimum fast road and track handling kit, enhanced tracking stabilisation and excellent damping force, a collection from the top suspension brands

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Related, superseded, cross reference or alternative numbers for comparison.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
29188-2
33239-2
3609309625

The product you are viewing cross references to these numbers
Road & track suspension handling kit Porsche 997 Carrera 4 and Carrera 4S 2005-2012 - 35-135920, 35-135913, 24-118248, 29188-2, 33239-2, 3609309625
1
Road & track suspension handling kit Porsche 997 Carrera 4 and Carrera 4S 2005-2012
SUSPENSION997C41
Product Information
Product Information
Optimum fast road and track handling kit, enhanced tracking stabilisation and excellent damping force, a collection from the top suspension brands

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
35-135920
35-135913
24-118248
29188-2
33239-2
3609309625

The product you are viewing cross references to these numbers
Road & track suspension handling kit Porsche 997 Carrera 4 and Carrera 4S with PASM 2005-2012 - 35-135852, 35-135845, 26-118284, 29188-2, 33239-2, 3609309625
1
Road & track suspension handling kit Porsche 997 Carrera 4 and Carrera 4S with PASM 2005-2012
SUSPENSION997C41P
Product Information
Product Information
Optimum fast road and track handling kit, enhanced tracking stabilisation and excellent damping force, a collection from the top suspension brands

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
35-135852
35-135845
26-118284
29188-2
33239-2
3609309625

The product you are viewing cross references to these numbers
H&R Lowering Springs. Porsche 997 C4 / C4S 20-25mm *cars with PASM, without OE sports suspension - 29188-2, 99733353141504, 99733353158604, 9973335311D504, 99733353143504, 99733353159504, 9973335311E504, 99734353304504, 99734353327504, 99734353339504, 99734353333504, 99734353336504, 99733353164504, 99733353186504, 99733353167504, 99733353187504
1
H&R Lowering Springs. Porsche 997 C4 / C4S 20-25mm *cars with PASM, without OE sports suspension
Special Offer
29188-2
Product Information
Product Information
H&R spring sets offer an inexpensive but high quality possibility to experience sportivity by yourself.

hr

Lowers car by: 20-25mm

Fits:
Porsche 997 C4 / C4S 11/2005>>

NOTE: For cars with or without PASM and without OE sports suspension (M030)

Ultra high performance cars like the Porsche Carrera GT, 996 GT II and GT III are equipped with H&R springs, while Mercedes Benz chose them for its supercar, the CLK DTM AMG which is directly derived from the DTM CLK. The use of high tension steel and the complete certification according to the requirements of DIN EN ISO 9001 allow an enormous flexibility at highest quality.

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

29188-2
29188-2
99733353141504
99733353158604
9973335311D504
99733353143504
99733353159504
9973335311E504
99734353304504
99734353327504
99734353339504
99734353333504
99734353336504
99733353164504
99733353186504
99733353167504
99733353187504

The product you are viewing cross references to these numbers
Lowering Springs Porsche 997 05-08 C4 / C4S / Turbo Eibach Pro-Kit (With OR Without PASM) - 99733353141, 99733353141504, 99733353158, 99733353158504, 9973335311D, 9973335311D504, 99733353143, 99733353143504, 99733353159, 99733353159504, 9973335311E, 9973335311E504, 99733353155, 99733353155504, 9973335311A, 9973335311A504, 99734353304, 99734353304504, 99734353324, 99734353324504, 99734353342, 99734353342504, 99734353329, 99734353329504, 99733353161, 99733353161504, 9973335311H504 - E10720070222
1
Lowering Springs Porsche 997 05-08 C4 / C4S / Turbo Eibach Pro-Kit (With OR Without PASM)
Special Offer
E10-72-007-02-22
Product Information
Product Information
PRO-KIT | Performance Springs

Fits:
Models with OR without PASM
Porsche 997 C4 3.6L / C4S 3.8L 2004-08 Coupe /
Porsche 997 3.8 L Turbo / Turbo S 2006>> Coupe / Cabrio
Porsche 997 C4 3.6L / C4S 3.8L 2006>> Targa

Lowers
Front 20mm
Rear 20mm

- Top-Performance Handling
- Lower centre of Gravity - Lowers Vehicle up to 1.5″ (40 mm)
- Progressive spring design
- Excellent ride quality

The Eibach Pro-Kit is the perfect answer for most popular street cars.

It's our legendary spring system that dramatically improves both a vehicle's performance and appearance. Pro-Kit lowers your car's centre of gravity, reducing squat during acceleration, body roll in corners and excessive nosedive under braking.

When combined with Plus-1 or Plus-2 wheels and tyres, the Eibach Pro-Kit is the finishing touch to a winning recipe for performance. Pro-Kit also reduces excessive fender well clearance, making your car look just as hot as it performs.

Every Eibach Pro-Kit is designed and tested by our suspension engineers and performance driving professionals, to deliver aggressive good looks and high performance handling, without ever compromising safety or ride quality.

By using our proprietary, progressive spring design, Pro-Kit provides the ultimate balance to take your passion for driving to a whole new level.

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

E10-72-007-02-22
99733353141
99733353141504
99733353158
99733353158504
9973335311D
9973335311D504
99733353143
99733353143504
99733353159
99733353159504
9973335311E
9973335311E504
99733353155
99733353155504
9973335311A
9973335311A504
99734353304
99734353304504
99734353324
99734353324504
99734353342
99734353342504
99734353329
99734353329504
99733353161
99733353161504
9973335311H504

The product you are viewing cross references to these numbers
DISPLAYING 1 to 6 (of 6 products)
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About Lowering Springs

Lowering Springs – Improved Stance, Handling and Ride Control

Lowering springs are suspension upgrade components designed to reduce ride height, lower the vehicle’s centre of gravity and improve handling performance. By replacing standard factory springs with shorter, higher-rate springs, lowering springs enhance cornering stability, reduce body roll and give the vehicle a more aggressive, purposeful stance.

At Design911, we supply lowering springs from trusted OE and performance suspension brands, engineered to maintain ride quality while delivering improved control. Whether you’re refreshing worn suspension components or upgrading for fast-road performance and visual impact, lowering springs provide a balanced and effective suspension upgrade.

What Do Lowering Springs Do?

Lowering springs replace standard suspension springs to reduce ride height and increase spring rate, helping the vehicle sit lower and respond more precisely to steering input. Their key benefits include:

  • Lower centre of gravity for improved stability
  • Reduced body roll during cornering
  • Improved steering response and road feel
  • Enhanced vehicle stance and appearance

When correctly matched to compatible dampers, lowering springs deliver noticeable handling improvements without sacrificing everyday usability.

Why Upgrade to Lowering Springs?

Lowering springs are a popular upgrade because they offer:

  • Improved handling with minimal modification
  • Better balance during spirited driving
  • Reduced squat and dive under acceleration and braking
  • A sportier, performance-oriented look

Performance lowering springs are developed through extensive testing to maintain correct suspension geometry, ride comfort and durability.

When Should You Replace or Install Lowering Springs?

Lowering springs should be installed when:

  • Factory springs are worn or sagging
  • You want improved handling for fast-road driving
  • You are upgrading dampers or other suspension components
  • Enhancing vehicle stance is part of a performance build

Replacing springs during suspension servicing ensures optimal performance and avoids uneven ride height or handling issues.

At Design911, our lowering springs meet high engineering standards for fitment, reliability and performance.

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