Description
Optimize your Porsche 911 (991) rear suspension for track performance with the Suspension Secrets Rear Camber Shim Kit. These shims increase negative camber on the rear axle, improving mid-corner traction, corner-exit speed, and overall stability while reducing tire wear. Perfect for GT3, GT3 RS, and GT2 RS owners who want a precise, track-ready setup.
Key Features & Benefits
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Material: Billet aircraft-grade 6082 T6 aluminium and 316 stainless steel
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Compatibility: Porsche 911 (991) GT3, GT3 RS, GT2 RS
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Easy installation: Bolt-on upgrade for rear suspension
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Adjustable camber: Shims can be stacked or staggered for custom settings
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Improved handling: Increases cornering speeds and transitional stability
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Reduced tire wear: Optimizes tire contact patch for efficient use
Vehicle Compatibility / Fitment
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Porsche 911 (991) GT3 (2013–2019)
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Porsche 911 (991) GT3 RS (2016–2019)
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Porsche 911 (991) GT2 RS (2018–2019)
Technical Specifications
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Shims included: 12 pieces – 4 x 1mm, 4 x 2mm, 4 x 3mm
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Material: 6082 T6 aluminium, 316 stainless steel, motorsport-spec Fluro bearings
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Finish: Corrosion-resistant with precision CNC machining
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Weight: Lightweight for minimal unsprung mass impact
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Adjustment range: Customizable negative camber via stacked or staggered shims
Installation Information
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Tools required: Standard hand tools
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Estimated install time: 30–60 minutes per axle
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Professional alignment recommended after installation
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Installation is simple and does not require major suspension disassembly
Performance Gains / Why It’s Needed
Factory Porsche 911 (991) GT models lack sufficient rear negative camber for track setups. Installing these shims increases rear grip during cornering, improves mid-corner and corner-exit speeds, and adds stability during transitions. Drivers will also notice more consistent tire contact and reduced wear, enhancing both performance and longevity on track and spirited driving.
What’s Included in the Kit
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12 Rear Camber Shims: 4 x 1mm, 4 x 2mm, 4 x 3mm
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Motorsport-spec Fluro bearings for precision performance
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High-quality aluminium and stainless steel components
Warranty & Guarantee
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Manufactured in the UK to high-quality standards
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Covered by Suspension Secrets manufacturer warranty
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Returns accepted for unused items in original packaging
This kit is ideal for Porsche suspension upgrades, rear camber adjustment, track day setup, and alignment tuning. Pair with other Suspension Secrets products or wheel spacers for a complete handling upgrade.
FAQs
Q1: Can I install these myself?
Yes, installation is straightforward but a professional alignment is recommended.
Q2: Do these work on all Porsche 991 models?
They are specifically designed for GT3, GT3 RS, and GT2 RS.
Q3: How much camber adjustment is possible?
Stacking or staggering the included shims allows precise negative camber settings to suit track or road use.
Q4: Will this affect tire wear?
Yes, properly set camber reduces uneven tire wear and maximizes grip.
Q5: Are these shims durable?
Made from aircraft-grade aluminium and stainless steel with motorsport-spec bearings, they are built for longevity.
Q6: Where are these made?
All Suspension Secrets products are designed and manufactured in the UK.

