Rear Spoilers / Aerofoil
Downforce RS aero kit. Porsche 991 Turbo
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
With TÜV parts certificate (§19.3).

Fits:
Porsche 997.1 Turbo models
The 991.1 Turbo Downforce RS Aero Kit ensures the best possible aerodynamic properties and is at the same time a beautiful oem+ design element that gives your Porsche a unique appearance.
It consists of:
1 x Front spoiler evo2 | P991.20.1022
1 x Side skirts | P991.22.2020
1 x Rear spoiler extension | P991.20.3020
1 x Ram Air Scoops | P991.20.2025
1 x Rear diffuser | P991.20.3040
This Downforce aero kit is delivered primed & paint ready. Mounting material is included.
Please note this item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
P991.20.7000
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This kit is comprised of the following items:
Aerokit 911 Turbo add-on package. Porsche 911 (991.2) Turbo
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19

For vehicles with painted side skirts and/or painted rear apron. Add-on kit includes new front spoiler with side fins, new fixed rear spoiler with new automatically extending rear wing, can be painted in exterior colour.
Fits:
Porsche 911 (991.2) Turbo / Turbo S 2017>>
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99104480308
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Rear spoiler / wing, carbon fibre. Porsche 991 Turbo
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
Manufactured in carbon fibre prepreg autoclave molded at high temperature & pressure with twill 2×2, 200 gr. fabric. Finish clearcote gloss.

Fits:
Porsche 991.1 Turbo / Turbo S
Porsche 991.2 Turbo / Turbo S
Please note: Not compatible on 991 Turbo models with Porsche Tequipment Aerokit installed.
Install as replacement of oem upper rear wing using the existent fixing points.
Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SFC99150423105GRV
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Rear wing spoiler extension. Porsche 991 Turbo
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
With TÜV parts certificate (§19.3), Also recognized in Switzerland.

Fits:
Porsche 991 Turbo | Turbo S
Not for models with original Aerokit.
The 991 Turbo rear spoiler extension ensures the best possible aerodynamic properties and is at the same time a beautiful oem+ design element that gives your Porsche a unique appearance.
Our 991 Turbo rear spoiler extension ensures the highest possible downforce. The original height adjustment and lowering are of course unchanged. The Porsche active aerodynamic rear spoiler functional capability stays and is not impaired.
MOSHAMMER® Patented mounting system, plug & play without drilling, and no screwing!
This Rear wing spoiler extension is delivered primed & paint ready. Mounting material is included.
Please note this item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
P991.20.3020
The product you are viewing cross references to these numbers
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12 Month Warranty
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Rennline ducktail rear spoiler. Porsche 991.2
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19

Fits
Porsche 991.2 - 2016 to 2019
Rennline’s new ducktail spoiler is a great way to give your 991.2 an OEM+ look with a modern spin on the classic Porsche design. Made from high-quality, hand laid carbon fiber using state of the art manufacturing techniques for a factory fit and finish.
Product Description
- High quality construction, using the latest technologies
- Carbon Fiber version is hand laid with a high gloss UV protectant finish
- CAD designed using 3D scans of the factory decklid
- Modeled after the iconic Porsche ducktail design
- ABS version is easily paintable to color match to body
- Uses pre-installed industrial grade 3M VHB adhesive to install
- OEM fit and finish
- Fits all Coupe, Cabriolet and targa models
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
E380
The product you are viewing cross references to these numbers
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Rennline mini rear spoiler carbon fibre. Porsche 991.2 / 991.2 turbo
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19

Fits:
Porsche 991.2 - 2016 to 2019
Porsche 991.2 turbo - 2016 to 2019
Product Description
Rennline’s new rear spoiler is a great way to give your 991 an OEM+ look with a modern spin on the classic Porsche design.
This spoiler is made from hand-laid carbon fiber using state-of-the-art manufacturing techniques for a factory fit and finish.
- High-quality construction, using the latest technologies
- The Carbon Fiber version is hand-laid with a high gloss UV protectant finish
- CAD designed using 3D scans of the factory decklid
- Uses pre-installed industrial grade 3M VHB adhesive to install
- OEM fit and finish
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12 Month Warranty
Worldwide Delivery
Universal Spoiler stabilizers adjustable 100-140mm for Front spoiler lip
for Front spoiler lip part number FA273 and FA277
• Universal spoiler stabilizers for all types of vehicles
• With these stabilizers you will provide your fasteners with better adhesion to the vehicle
• Increased stability at high speeds
• Racing/rally look
• Set consisting of 2 stabilizers
• Adjustable length
• Ends can be rotated 360 degrees
• Includes fastening materials
Technical data:
• Length: 100-140mm
• Material: aluminium/stainless steel
• Available colours: blue, gold, red, black, silver,
Please note: This is a special-order item, can take 8-12 weeks to be delivered and once ordered cannot be cancelled.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
ZB15
The product you are viewing cross references to these numbers
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12 Month Warranty
Worldwide Delivery
Universal Spoiler stabilizers adjustable 200-260mm for Front spoiler lip
for Front spoiler lip part number FA273 and FA277
• Universal spoiler stabilizers for all types of vehicles
• With these stabilizers you will provide your fasteners with better adhesion to the vehicle
• Increased stability at high speeds
• Racing / rally look
• Set consisting of 2 stabilizers
• Adjustable length
• Ends can be rotated 360 degrees
• Includes fastening materials
Technical data:
• Length: 200-260mm
• Material: aluminium/stainless steel
• Available colours: blue, gold, red, black, silver,
Please note: This is a special-order item, can take 8-12 weeks to be delivered and once ordered cannot be cancelled.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
ZB16
The product you are viewing cross references to these numbers
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12 Month Warranty
Worldwide Delivery
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.