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Porsche // 993 (911) (1994-1998) // Any
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- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Airbox Tensioning Rubber Strap
Sold each - 2 required per car
High-quality replacement rubber tensioning strap designed for the airbox (air filter housing) on Porsche 928 models from 1985 to 1995.
This strap secures the air filter housing lid in place,
ensuring a tight seal within the intake system. It plays a vital role in
maintaining proper airflow and preventing unfiltered air from entering the
engine.
Fits:
- Porsche 928S2 4.7L 1985-86 (engine codes 2843, 2844, 2845, 2846)
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 2
Manufactured to OEM specifications, this rubber strap provides the correct fit and tension required for reliable operation—ideal for maintenance or restoration of your Porsche 928 engine bay.
Key Features
• Direct replacement airbox rubber tension strap
• Suitable for Porsche 928 models (1985–1995)
• Secures air filter housing lid firmly in place
• Maintains proper intake system sealing
• OEM-style fit and flexibility
• Durable rubber construction for long-term use
Function and Purpose
This rubber strap holds the airbox closed under tension.
It helps to:
• Ensure proper sealing of the air filter housing
• Prevent unfiltered air entering the engine
• Maintain correct airflow through the intake system
• Support engine performance and efficiency
Why Replace Your Airbox Strap
Over time, rubber straps can deteriorate due to heat and ageing.
Common issues include:
• Cracking or splitting rubber
• Loss of tension or elasticity
• Loose or poorly sealed airbox
• Increased risk of intake air leaks
Replacing the strap restores proper airbox sealing and functionality.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811036306
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
Fits:
Porsche 993 Turbo 1994-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99311036051
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Fits:
Porsche 993 C2 / C4 1994-98
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99311003056
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
x4 Angle Brackets and x1 Air Filter Included.
Fits:
Porsche 993 Carrera 2 / 4 1996>>1998
Cars With Option Codes:
159 - Motor Sound Package
Cars With Engine Codes:
6421 / 6422 / 6423 / 6424
Diagram Ref No 1 (Diagram Ref No 2, 3 And 4 Included)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99311003008
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Carbon Fibre Rear Window Air Intake Kit
Transform the appearance and functionality of your Porsche
993 with this premium Carbon Fibre Rear Window Air Intake Kit. Inspired by
motorsport engineering and modern restomod design, this innovative system
channels air from specially designed rear quarter windows through a central
carbon fibre intake tube, delivering a unique visual statement while providing
a functional airflow path to the engine bay.
Fits:
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Designed exclusively for Porsche 993 Coupe models, this kit combines lightweight carbon fibre construction, CNC-machined aluminium components and factory-tinted acrylic side windows to create one of the most distinctive upgrades available for air-cooled Porsche enthusiasts.
Whether you're building a high-end restomod, creating a track-inspired road car or simply looking for a unique engine bay airflow solution, this system delivers a stunning combination of form and function.
What Does the Rear Window Air Intake Do?
The system draws air through specially supplied factory green-tinted acrylic rear side windows and channels it through a central carbon fibre intake tube.
When installed with the optional rear shelf opening, the
intake system:
- Directs additional airflow towards the engine bay
- Creates a motorsport-inspired induction pathway
- Enhances engine compartment ventilation
- Provides a unique performance appearance
- Adds distinctive visual character to the vehicle
- Delivers authentic race-inspired styling
The result is a striking rear cabin feature that instantly differentiates your Porsche from standard models.
Functional or Cosmetic Installation Options
One of the unique advantages of this system is installation flexibility.
Functional Air Intake Installation
Using the supplied cutting template, an opening is created in the rear shelf structure, allowing airflow from the intake system to reach the engine compartment.
Benefits include:
- Functional engine bay air feed
- Enhanced airflow routing
- Authentic motorsport-inspired setup
- Maximum visual and engineering impact
Non-Cut Cosmetic Installation
The system can also be securely mounted without cutting the rear shelf.
Benefits include:
- Fully reversible appearance upgrade
- No structural modifications required
- Maintains originality
- Creates the same visual impact
Please note - without cutting the rear shelf, no air is routed into the engine bay and the installation serves as a styling enhancement only.
Premium Carbon Fibre Construction
At the centre of the system is a lightweight carbon fibre intake tube incorporating an integrated debris protection system.
Features include:
- Lightweight carbon fibre construction
- Internal black debris mesh installed
- Motorsport-inspired appearance
- Excellent rigidity and durability
- Available in multiple finish options
Carbon Fibre Finish Options
Choose from:
- Raw visible carbon fibre (no clear coat)
- Gloss clear coat finish
- Satin clear coat finish
All options utilise the same high-quality carbon construction and differ only in appearance.
CNC-Machined Aluminium Window Bezels
The intake windows connect to the carbon tube using precision CNC-machined aluminium joints.
Available finishes include:
- Polished aluminium
- Matte silver
- Matte black
Each bezel incorporates an internal wire mesh screen designed to prevent leaves, stones and road debris from entering the intake system.
Factory Green-Tinted Rear Side Windows
The kit includes replacement rear quarter windows manufactured in factory-style green-tinted acrylic.
Benefits include:
- OE-inspired appearance
- Lightweight construction
- Clean integration with the intake system
- Excellent visual clarity
- Motorsport-inspired styling
Debris Protection Built In
To protect the engine bay and intake pathway, each aluminium bezel includes a factory-installed wire mesh insert.
This helps prevent:
- Stones Leaves
- Dirt Road debris
- Foreign objects
The mesh is installed during manufacturing and requires no additional assembly.
Important Compatibility Note
Due to differences in C-pillar geometry, this system is not
compatible with:
Porsche
993 Targa
Please confirm vehicle body style before ordering.
Included in the Kit
Every kit includes:
- Carbon fibre intake tube
- Integrated debris protection mesh
- Left-hand rear side window in factory green tint
- Right-hand rear side window in factory green tint
- CNC-machined aluminium connecting bezels
- Cutting template
- Full installation guide
Why Upgrade?
This rear window air intake system is one of the most visually striking upgrades available for Porsche 993 Coupe models.
Benefits include:
- Unique motorsport-inspired styling
- Lightweight carbon fibre construction
- Functional airflow capability
- Premium CNC-machined components
- Restomod-inspired appearance
- Enhanced engine bay aesthetics
- Highly distinctive rear cabin design
- Exclusivity and rarity