Strut Brace
Fits:
Porsche 997 2005>>
Porsche 987 Boxster 2005>>
Porsche 987 Cayman 2005>>
One of the easiest and most cost-effective ways to improve your car's handling is the installation of a Rennline strut tower brace. These braces bridge both shock towers, eliminating virtually all camber change that occurs during hard cornering. Not all cars are the same, so Rennline has made their braces fully adjustable, allowing you to set a desired amount of pre-stress. Both the strut bar and brackets are constructed from aircraft grade aluminum, and include stainless steel hardware. Rennline strut tower braces bolt in and out in minutes and require no drilling. Whether you're on the street or on the track you'll feel the difference immediately. This strut brace does allow the use of your plastic cowl cover but small alteration would be required.
Please note some cars might require the ends of the brace cut by approx 10mm each side in order to fit the bar on towers. This might be depending on the location of your top mounts.
Note: Pictures may not show actual product.
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 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 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 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 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 GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
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Porsche Motorsport Strut Braces | Design911 High-Performance Chassis Reinforcement
Strut braces are a vital upgrade for any Porsche involved in motorsport, spirited road driving, or performance tuning. They reinforce the vehicle’s suspension structure, maintaining precise chassis alignment under heavy cornering, braking, and acceleration. Whether fitted to a classic 911 or a modern Cayman GT4, these precision-engineered components enhance rigidity, stability, and steering response.
At Design911, we supply a premium range of strut braces and chassis reinforcement bars designed for strength, lightness, and exact fitment. Manufactured from high-grade aluminium, carbon fibre, and steel alloys, each brace offers exceptional torsional stiffness without unnecessary weight gain. Ideal for track-day setups, motorsport preparation, or performance restoration, our collection ensures your Porsche handles exactly as intended.
What Do Strut Braces Do?
Strut braces link the suspension towers together to reduce chassis flex, ensuring consistent handling characteristics even under high load.
Core Functions:
• Increase chassis stiffness and reduce body roll.
• Maintain precise suspension geometry during cornering.
• Improve steering accuracy and feedback.
• Reduce stress and movement in upper suspension mounts.
• Enhance overall driving stability and predictability.
By reinforcing the front or rear suspension structure, strut braces create a more connected, confident, and performance-focused driving experience — both on road and track.
Why Do Strut Braces Fail or Degrade?
Over time and through aggressive driving, strut braces can lose effectiveness due to fatigue, corrosion, or damage from improper installation or accidents.
Common Causes of Failure Include:
• Metal fatigue from repeated torsional loads.
• Corrosion or cracking in alloy or steel construction.
• Worn joints or mounting hardware causing flex or noise.
• Impact damage from track incidents or suspension movement.
• Substandard aftermarket materials lacking proper reinforcement.
When a strut brace fails or weakens, suspension alignment suffers — leading to reduced handling precision, unpredictable cornering, and compromised safety.
Why Replace or Upgrade Your Porsche Strut Brace?
Upgrading to a modern performance-spec strut brace ensures your Porsche maintains its optimal chassis integrity and handling balance.
Key Benefits:
• Restores and enhances chassis rigidity.
• Improves cornering stability and steering response.
• Prevents tower flex and suspension misalignment.
• Available in lightweight aluminium, carbon fibre, and reinforced steel.
• Precision-engineered for Porsche 911, Cayman, Boxster, and 718 models.
• Essential for motorsport, track-day, or high-performance road setups.
Design911’s Porsche strut brace range combines engineering accuracy, lightweight construction, and motorsport-proven performance — ensuring the best driving dynamics and long-term reliability.
Highlights
• Premium Porsche strut braces and chassis reinforcement
kits.
• CNC-machined or carbon composite designs for maximum stiffness.
• Lightweight, corrosion-resistant construction.
• Improves turn-in precision and cornering confidence.
• Ideal for motorsport, tuning, and restoration projects.
• Fits classic and modern Porsche models with precision alignment.
