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Rear Spoilers / Aerofoil

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DISPLAYING 1 to 16 (of 21 products)
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GRILLFITKIT901
Product Information
Product Information
Fitting Kit for Grille 90155904121/1 for Rear Spoiler Lid.

porsche

Fits:
Porsche 911 1965-68

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GRILLFITKIT901
90155904121
90155942121
90151179121
90015102703
99908410202

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91150510020KIT
Product Information
Product Information
You can now turn your 911 into the classic RSR WIDEBODY Look.

The kit includes the RSR widebody look Front bumper, Rear bumper / Rear duct tail engine lid.

The panels are made in the Germany and are high quality.

Fits:
Porsche 911 1966-73
Porsche 911 1974-89

Material:
Made from Fibre Glass GRP

Product Type:
Replica

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Related, superseded, cross reference or alternative numbers for comparison.

91150510020KIT
91150510020

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Special Order item
91155904100
Product Information
Product Information
Air inlet grille for rear engine cover. Chrome Grille with Black mesh 5 Bar design

Fits:
Porsche 911 1965-73

This product supersedes Porsche's old part numbers:
- 90155904123

Diagram ref no 14

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Related, superseded, cross reference or alternative numbers for comparison.

91155904100
91155904100
90155904123

The product you are viewing cross references to these numbers
91155904100/1
Product Information
Product Information
Air inlet grille for rear engine cover. Chrome Grille with Black mesh 5 Bar design

Fits:
Porsche 911 1965-71

This product supersedes Porsche's old part numbers:
- 90155904123

Diagram ref no 14

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91155904100
91155904100
90155904123

The product you are viewing cross references to these numbers
91155904100/2
Product Information
Product Information
Air inlet grille for rear engine cover. Chrome Grille with Chrome mesh 5 Bar design

Fits:
Porsche 911 1965-71

This product supersedes Porsche's old part numbers:
- 90155904123

Diagram ref no 14

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91155904100
91155904100
90155904123

The product you are viewing cross references to these numbers
91155904100/3
Product Information
Product Information
Air inlet grille for rear engine cover. Chrome Grille with Black mesh 3 Bar design

Fits:
Porsche 911 1965-73

This product supersedes Porsche's old part numbers:
- 90155904123

Diagram ref no 14

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91155904100
91155904100
90155904123
9472 3BAR

The product you are viewing cross references to these numbers
91155904102/1
Product Information
Product Information
Air inlet grille for rear engine cover. Black Grille with Black mesh 5 Bar design

Fits:
Porsche 911 1965-73

Diagram ref no 14

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91155904102
91155904100
90155904123

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Special Order item
90155945121
Product Information
Product Information
Engine grill screw.
8 required per grille. Sold each.

porsche

Fits:
Porsche 911 / 912 1965-68

Click 'Zoom in' for large parts diagram.
Diagram ref no 31

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90155945121
90155904121
1684550206
1684550200
90155945121

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Special Order item
90091000809
Product Information
Product Information
M5 Hex nut for grille fastening screw. Sold each.

porsche

Fits:
Porsche 911 / 912 1965-68

Click 'Zoom in' for large parts diagram.
Diagram ref no 34

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90091000809
90155904121
1684550206
1684550200
99908410202
90091000802
90091000809

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90151201023/1
Product Information
Product Information
Engine lid in steel with hole for license plate lamp.

dansk

Fits:
Porsche 911 SWB (short wheel base) 2.0L 01/1963-11/1968

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90151201023
1680200100
591065
90151201023

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P911DCTL
Product Information
Product Information
911 Ducktail Rear Spoiler / Bürzel

fibretek

Fits:
Porsche 911 1965-89

You will require early 911 grille and fitting kit to fit this spoiler.

Please CLICK HERE to view the grille.

Please CLICK HERE to view the fitting kit.

Average weight: 5 kilograms

Please note:
Requires the grill - not included in price

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P911DCTL
91150530050

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CFDUCKTAIL
Product Information
Product Information
Rear duck tail (Ducktail) RS spoiler, Carbon fibre.

Fits:
Porsche 911 / 930 / 964 1965 - 1994

Average weight: 3.50 Kgs

Please note:
Requires the grill - not included in price
This product may require minor modifications in order to adapt it to your vehicle.



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CFDUCKTAIL
91150530050
P911DCTL

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TK13B
Product Information
Product Information
Ducktail for 911 with Including thread inserts for hinges and bonnet lock.

With integrated aluminium frame.

fibreglass

Fits:
Porsche 911 2.7 RS
Porsche 911 2.8 RSR

Please note: This part is on special order terms. It will be made to order that could take 6-8+ weeks. It is not a subject to cancellation or return if not required.
91151290310
Product Information
Product Information
Rear Engine Lid With Vents . Porsche 911 1973-89
Unique vented design, Hand Made steel rear engine lid.
Can be used on Early F model 911's 1965-73 but the number plate light cannot be fitted into the lid

Fits:
Porsche 911 2.7L-3.2L 08/1973-07/1989

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91151290310
1680200300
591165
91151201056
91151201065GRV
91151201065

The product you are viewing cross references to these numbers
90155904121/1
Product Information
Product Information
Very high grade chrome grille for early 911 with twin bars in the centre.

Fits:
Porsche 911 (2.0) 01/63-07/67
Porsche 912 (1.6) 01/65-02/70
Can also be fitted to newer models

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90155904121
90155904121
90155904121

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TK421
Product Information
Product Information
"Singer Look" rear spoiler with engine lid.

Fits:
Porsche 911 F/G models 1965 - 1989 all

Upgrade your classic Porsche 911 with this striking Singer Look rear spoiler complete with engine lid—designed to suit all F- and G-series models from 1965 to 1989. Crafted to evoke the timeless styling of Porsche’s iconic Singer conversions, this spoiler enhances both aesthetics and presence while offering high-quality construction.

Features:
Compatible with Porsche 911 F-series (1965-72) and G-series (1974-89) chassis
Includes matching engine lid for a cohesive rear-end upgrade
 Optional aluminium grille available separately in multiple finishes for personalized styling and airflow enhancement.

Transform your Porsche’s rear profile with a refined blend of performance heritage and timeless design.

Please note: This part is on special order terms. It will be made to order that could take 6-8+ weeks. It is not a subject to cancellation or return if not required.

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TK421
TK421

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DISPLAYING 1 to 16 (of 21 products)
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About Rear Spoilers / Aerofoil

Porsche Rear Spoilers & Aerofoils | Performance, Stability & Design Enhancement

Rear spoilers and aerofoils are key aerodynamic components designed to increase downforce, improve stability, and enhance the distinctive styling of your Porsche. Whether you’re replacing a damaged spoiler, upgrading to a lightweight performance aerofoil, or transforming your vehicle’s exterior for a sportier stance, these parts combine aerodynamic precision with visual appeal.

At Design911, we supply a comprehensive range of high-quality rear spoilers and aerofoils, crafted from advanced materials such as carbon fibre, fiberglass, and composite alloys for maximum strength and minimal weight. Designed for precision fitment, these components deliver improved handling, reduced lift, and a more aggressive aesthetic that reflects Porsche’s racing heritage.

Suitable for classic 911s through to modern 992, Cayman, and Boxster models, our rear spoilers ensure a perfect balance of performance, design, and durability for every application — from restoration to motorsport preparation.

What Do Rear Spoilers and Aerofoils Do?

A rear spoiler or aerofoil manages airflow over your Porsche’s body to enhance stability, grip, and aerodynamic efficiency. By reducing lift and increasing rear downforce, it ensures consistent traction and improved high-speed performance.

Core Functions:

  • Increases rear downforce for enhanced stability and control.
  • Reduces aerodynamic lift and drag at high speeds.
  • Improves traction during cornering and acceleration.
  • Directs airflow for better cooling efficiency.
  • Adds a distinctive motorsport-inspired aesthetic.

A well-engineered spoiler doesn’t just look stunning — it directly contributes to safer, more predictable handling and optimal balance under load.

Why Do Rear Spoilers and Aerofoils Fail or Deteriorate?

Rear spoilers are exposed to aerodynamic pressure, vibration, and environmental conditions, which can lead to wear and damage over time.

Common Causes of Failure Include:

  • UV degradation leading to fading or cracking of materials.
  • Impact damage from debris or rear-end collisions.
  • Corrosion or fatigue in metal mounting brackets.
  • Loose fittings causing vibration or misalignment.
  • Paint wear or delamination on carbon fibre surfaces.

If neglected, a damaged or unstable spoiler can cause aerodynamic imbalance, increased drag, and even safety concerns at higher speeds — making timely replacement or upgrade essential.

Why Replace Your Rear Spoiler or Aerofoil?

Replacing a worn or damaged rear spoiler ensures aerodynamic integrity and restores your Porsche’s original performance and appearance. Upgrading to a modern or motorsport-style aerofoil can further enhance downforce, aesthetics, and handling precision.

Key Benefits:

  • Restores aerodynamic balance and rear stability.
  • Improves cornering grip and high-speed control.
  • Enhances vehicle appearance with performance styling.
  • Lightweight materials for improved performance efficiency.
  • Precision-engineered for seamless installation.
  • Ideal for restoration or track-focused upgrades.

Whether you prefer a classic ducktail design, GT-style rear wing, or a carbon fibre adjustable aerofoil, our range of Porsche rear spoilers ensures you achieve the perfect blend of heritage and performance.

Highlights:

  • Premium Porsche rear spoilers and aerofoils for all models.
  • Engineered for aerodynamic performance and design accuracy.
  • Lightweight carbon fibre, fiberglass, or composite construction.
  • Direct-fit replacement or upgrade options available.
  • Ideal for both street and track applications.
  • Restores performance while elevating exterior styling.

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