
Mounted across the rear axle, it reinforces the suspension subframe and strut mounting points, reducing flex under load and improving overall stability. By keeping the suspension geometry tight, this brace helps maintain precise handling and extends the life of surrounding components.
Fits:
Porsche 996 C2 / C4 / C4S - 1997 to 2004
Porsche 996 turbo - 2000 to 2005
Porsche 996 GT3 - 1999 to 2005
Porsche 997.1 C2 / C4 /C4S - 2005 to 2008
Porsche 997.1 turbo - 2007 to 2008
Porsche 997 GT3 - 2007 to 2012
Porsche 997.1 - 2005 to 2008
Diagram ref no 10
What It Does:
- The bracket reinforces the rear suspension geometry. It braces your Porsche's structure to reduce flex under load, improve stability, and maintain alignment under cornering or when encountering bumps.
- Helps distribute loads through the rear suspension so that components like arms, bushings, struts, and mounts don’t shift or wear prematurely.
Why Replacement Matters:
- If this bracket is damaged, bent, or weakened, you may experience rear-end instability, excessive movement in suspension under load, or handling that feels loose or unpredictable.
- Worn or misaligned brackets allow structural flex, which can accelerate wear in suspension arms and bushings.
- Proper reinforcement helps maintain ride and safety when driving hard or when the vehicle is aged.
You may need to replace the support brace if you hear clunking or knocking from the rear suspension, notice uneven tire wear, or feel looseness in the car’s handling. A visual inspection showing cracks, bends, or corrosion is another clear sign. It’s also smart to check this part after any rear impact, even a minor one, as damage can affect stability and alignment.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99733108103
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 Carrera 2 3.6L 2005-08
- Porsche 997 Carrera 2S 3.8L 2005-08
- Porsche 997 Carrera 4 3.6L 2005-08
- Porsche 997 Carrera 4S 3.8L 2005-08
- Porsche 997 TURBO 2007-09
- Porsche 997 GT3 2007-09
- Porsche 997 MKII GT3 2010-11