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In this 992 GT3 suspension upgrades guide, we’ll detail the car’s handling weaknesses and reveal the best modifications for fixing them, including handling packages from Suspension Secrets.
992 GT3 Suspension & Handling Overview
The 991 generation may have advanced the 911 breed in many areas, but plenty of drivers missed the preceding 997’s hydraulic steering system, for example, which offered more feedback than the new electro-mechanical setup. The 991’s additional size and weight arguably blunted handling dynamics, too.
Arriving in 2013, the 991 GT3 boasted a 3.8-litre, non-Mezger, flat-six engine producing 450hp. Transmission was seven-speed PDK dual-clutch, and rear-wheel steering featured for the first time. The suspension comprised stiffer-mounted MacPherson struts with adjustable camber and toe, while the rear was multi-link.
PASM adaptive dampers offered Normal and Sport modes, while high-rate springs and monoball bearings improved precision over lesser variants. These were teamed with adjustable anti-roll bars and a 20 to 30mm drop in ride height. The standard 20-inch wheels were wrapped in 245/35 and 305/30 rubber at the front and rear respectively.
In the spring of 2017, Porsche announced the 991.2 version of the GT3. The model’s new, four-litre flat-six produced 500hp and revved to 9,000rpm. A six-speed manual gearbox was offered as an option, while the PDK boasted faster shifts. Aerodynamic changes increased downforce levels and lighter wheels were made available.
GT3 Suspension Limitations
The 992 GT3 suspension boasts greater ranges of adjustment than the average car (including camber, caster, toe angle and ride height). However, the standard setup is still relatively limited in scope - especially if you want to apply more aggressive suspension settings for track work.
Common criticisms of the 992 GT3 chassis include:
- Limited camber adjustment
- Insufficient caster angle
- Bump-steer issues when the car is lowered
- Rear-wheel steering system complexity
- Limited damper adjustment range
These issues ultimately affect handling performance, driver enjoyment and lap times on circuit. Thankfully, they can all be fixed with bolt-on 992 GT3 suspension upgrades.
GT3 Handling Problems (And How To Fix Them)
With the 992 GT3 suspension upgrades detailed below, you can achieve the following…
GT3 suspension fixes
1. Increased front camber to reduce understeer
2. Improved rear toe control to enhance traction
3. Lowered centre of gravity to reduce pitch and roll
4. Corrected geometry to enhance precision
5. Increased damper efficiency and adjustment range
All combined, the upgrades below dramatically improve how the 992 GT3 suspension operates, enhancing cornering grip, traction, braking stability and precision on the road and track.
Porsche 992 GT3 Suspension Geometry & Alignment Setup (Top Tip)
A full suspension geometry alignment is essential after installing new suspension parts. By correctly adjusting camber, toe, and caster (where available), alignment ensures you maximise grip, stability, and tyre life.
Benefits of Professional 911 GT3 Geometry Setup
- Sharper steering response
- Increased cornering grip
- Improved rear traction
- Enhanced braking stability
A professional alignment is the single most cost-effective handling upgrade you can make.
Essential GT3 Suspension Upgrades
This section covers essential Porsche 911 GT3 suspension upgrades that deliver the greatest handling improvements with minimal compromise. These upgrades form the basis of the Suspension Secrets Track Pack (detailed later in the guide) and are the ideal starting point for both fast road and track-focused builds.
Camber Kit
Although it's possible to apply more negative camber to the front and rear of the 992 GT3, the stock parts do not offer sufficient adjustment for fast road and track setups.
The Suspension Secrets Camber Kit includes our Front Camber Blocks and Rear Camber Shims to achieve even greater negative camber on both axles. With our GT3 camber blocks installed, maximum range increases from -2.5 degrees to -3.8 degrees.
Why Negative Camber Matters
- Enables higher cornering speeds
- Increases mechanical grip
- Reduces understeer/front end push
- Enhances steering feel
- Allows better use of tyre contact patch during fast driving
These Suspension Secrets upgrades are manufactured from aircraft-grade 6082 T6 aluminium and corrosion-resistant 316 stainless steel, and come with a lifetime warranty.
Complete GT3 Suspension Package
The 992 GT3 front camber plates and rear camber shims described above are a great starting point for improved handling. For drivers wanting even greater handling performance for serious track work, we recommend investing in a comprehensive bolt-on suspension package like the 992 GT3 Track Pack described below…
Track Pack
The standard 992 GT3 offers more chassis adjustment than most performance cars, however more is needed to achieve the perfect trackday setup. That's where our Suspension Secrets Track Pack comes in.
992 GT3 Track Pack Includes:
- Front Camber Blocks
- Rear Camber Shims
- Bump-Steer Tie Rod Ends
- Solid Rear Control Arm Monoball Kit
This 992 GT3 suspension upgrade package significantly reduces understeer, increases cornering grip, and enhances steering accuracy. By allowing more aggressive track setups to be applied to the chassis, it also improves tyre life on track, increases cornering stability and boosting driver confidence.
Best for: Cars used on trackdays
Uprated Coilovers
The 992 GT3 is equipped with Sachs dampers and two-mode Porsche Active Suspension Management (PASM). Although perfectly adequate for many owners who mainly drive on the road and sometimes visit the track, this relatively basic system doesn't satisfy keen trackday enthusiasts when it comes to body control, bump absorption and chassis response.
The perfect answer for these hardcore drivers is KW V5 Clubsport Coilovers, which offer motorsport-level control over car behaviour.
How 4-way Coilovers Work:
- Low-speed compression - affects body roll and chassis response to steering/brake inputs
- Low-speed rebound - affects how the car settles after load transfer
- High-speed compression - helps the car remain stable over bumps/kerbs
- High-speed rebound - supports control over rapid suspension motion at high speed
Derived from FIA GT3 technology, the KW V5 Clubsport system is designed to handle greater cornering loads than the stock GT3 setup. This capability is invaluable if you are looking to increase aerodynamic performance with the Vulcan Alpha GT3 parts described below.
Aerodynamic Upgrades
After comprehensively upgrading the GT3's suspension, the 992 is primed and ready for full aerodynamic enhancements from Vulcan Alpha. These carbon fibre components significantly increase downforce and unlock even more cornering speed and stability.
We recommend fitting the following GT3 aerodynamic upgrades to deliver near GT3 RS levels of handling performance:
Front Splitter (Order here)
- Increases front downforce
- Improves front-end but in high-speed corners
- Works perfectly with increased camber
Front Canards (Order here)
- Fine-tune front pressure distribution
- Added stability under braking and turn-in
Rear Wing (Order here)
- Balances front downforce with rear grip
- Improves high-speed stability and mid-corner control
Combining these aerodynamic enhancements with fully upgraded suspension will make the 992 GT3 handle like never before on track.
GT3 Too Stiff?
For those owners looking to improve their GT3's on-road behaviour, our Suspension Secrets Soft Spring Conversion Kit offers the perfect solution.
The GT3's stiffened springs help handling on circuit, but can make the car feel overly harsh and nervous on the road. Our kit includes 12% softer front springs and 15% softer rear springs, which make the GT3 feel far more comfortable and stable on the road.
Soft Spring Kit Benefits:
- Improves ride refinement
- Increased grip at road speeds
- Improved stability over undulations
- Compatible with nose lift and PASM
- Ride height adjustability is retained
- Uses original dampers
Our GT3 spring kit does not negatively impact cornering performance on the road, and is completely reversible.
Porsche 992 GT3 Suspension FAQs
Why does the 992 GT3 need suspension upgrades?
The Porsche 911 GT3 (992) is highly capable, but factory camber and geometry settings limit aggressive track setups and ultimate front-end grip.
What is the biggest handling weakness?
Limited front camber and conservative geometry can cause understeer during hard cornering.
Will more negative camber improve lap times?
Yes. Increased negative camber improves tyre contact under load, boosting cornering grip and reducing understeer.
Are coilovers necessary for track use?
Not essential, but systems like the KW V5 Clubsport provide superior body control and adjustability.
Do I need a geometry setup after upgrades?
Absolutely. Professional alignment maximises grip, stability and tyre life after installation.
Tested and developed by Suspension Secrets through extensive road and track evaluation, these upgrades unlock enhanced handling performance from the Porsche 992 GT3 chassis.