Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Side section / Sub frame
By OE Match
- 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 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 / GT3 RS 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
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
OEMatch Side section / Sub frame — Fit, Function, Confidence
Side sections and subframes form the structural mounting points that link suspension arms, the steering assembly and drivetrain fixings to the bodyshell. On Porsche models these elements maintain suspension geometry, reduce unwanted movement and help preserve steering precision and stability under load. Replacing a damaged or corroded unit restores alignment and supports predictable handling.
Available Types
- Replacement side sections shaped to original profiles for repair or restoration
- Repair sections intended for localised corrosion or collision damage
- Reinforced subframes offering increased rigidity where required for demanding use
Understanding OEMatch Side section / Sub frame
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original side section / sub frame.
OE (Original Equipment) refers to parts matching original specifications for the side section / sub frame and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM side section / sub frame engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. The subframe or side section acts as a rigid mounting point that distributes loads from braking, cornering and acceleration through the chassis, keeps suspension pick-up points in the correct position and reduces vibration transmitted to the body.
Benefits Include
- Restores correct suspension geometry for predictable wheel alignment
- Returns structural strength to mounting points that control forces from the suspension and drivetrain
- Reduces vibration and flex to improve steering feel and ride quality
Why Side section / Sub frame Wear and Fail
- Corrosion weakening the metal structure and mounting faces
- Impact damage from road debris or collisions causing deformation or cracks
- Fatigue and stress accumulation over many years of service
- Worn or damaged mounting points leading to alignment drift
- Improper repairs or previous welding that alters original geometry
The Importance of Replacing with OEMatch Side section / Sub frame
Replacing a compromised side section or subframe restores the chassis mounting geometry that underpins safe handling on Porsche vehicles. A correctly fitted unit helps prevent uneven tyre wear, reduces steering instability and returns the vehicle to its designed handling balance. For restorations and repairs it also permits accurate wheel alignment and helps ensure safety-critical attachments sit on sound structure.
Advantages
- Direct-fit replacements engineered to match original dimensions and tolerances
- Options that restore original mounting points and clearances for simple alignment
- Components selected for corrosion resistance and structural integrity where appropriate