do not press the back button…
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.
- Accessories
- Brakes
- Chassis / Bodywork
- Clothing & Gifts
- Electrical & Relays
- Engine Cooling
- Engine Electrical
- Engine Rebuild Parts
- Engine Tuning
- Exhausts
- Exterior Styling / Spoilers
- Gearbox / Transmission
- Heating / Air Conditioning
- Hydraulics
- Incar / Multimedia
- Interior & Accessories
- Lighting
- Mats & Carpets
- Motorsport and Off-Road
- Parts for Other Cars
- Pedal Cluster
- Rubber Seals
- Seats & Seat Belts
- Service Parts
- Special Offer Parts
- Steering Parts
- Suspension & Axle
- Suspension Upgrades
- Tyres
- Wheel Accessories
- Wheels
Original Porsche Part Genuine Porsche part 9GT827770OK1
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
SilverRocket DRS-1 Dry Carbon Fibre Rear Wing Endplates –
Advanced Aerodynamics for Porsche 718 GT4 RS
The SilverRocket DRS-1 Dry Carbon Fibre Rear Wing Endplates
redefine aerodynamic performance and visual precision for the Porsche 718
GT4 RS. Designed for drivers seeking both speed and stability, these
endplates are engineered from aerospace-grade dry carbon fibre,
delivering a 50% weight reduction compared to standard plastic alternatives
while improving aerodynamic efficiency and structural rigidity.
Fits:
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
- Porsche Cayman GT4 RS Clubsport
2020-2024
Paired with the SilverRocket mini gurney flap, the DRS-1 endplates generate an 8.3% increase in rear downforce at 200 km/h, resulting in enhanced high-speed balance, improved cornering grip, and a more planted feel during aggressive driving or track sessions.
Developed through Computational Fluid Dynamics (CFD) simulation and verified through wind tunnel testing, these endplates exemplify SilverRocket’s commitment to precision-engineered, motorsport-grade performance parts for Porsche GT applications.
What Do Rear Wing Endplates Do?
Rear wing endplates are critical components that shape how air
flows over and around the rear wing. Their primary function is to manage
airflow efficiency and maintain aerodynamic stability.
Core Functions:
- Increase
rear downforce by
containing airflow across the wing surface.
- Reduce
drag and turbulence
created by high-speed air separation.
- Stabilise
vehicle balance
during cornering and braking.
- Improve aerodynamic consistency, optimising handling and traction.
By refining airflow and limiting lateral air escape, the DRS-1
endplates help your GT4 RS maintain high-speed stability, improving both lap
times and driver confidence.
Why Do Rear Wing Endplates Fail?
Over time, standard plastic or composite endplates degrade due
to the extreme aerodynamic and thermal stresses placed on them during
performance driving. Common issues include:
- Cracking
or fatigue from
high-speed aerodynamic loads.
- Material
flex that reduces
downforce effectiveness.
- UV
damage and heat deformation, compromising structural integrity.
- Loose mounting points from vibration or impact.
SilverRocket’s dry carbon fibre construction eliminates these weaknesses by offering unmatched stiffness, lower weight, and superior heat resistance, ensuring long-term reliability and consistent aerodynamic performance.
Why Upgrade to SilverRocket DRS-1 Dry
Carbon Fibre Endplates?
The DRS-1 endplates are not just lighter — they’re smarter,
stronger, and more aerodynamically efficient. Using motorsport-grade
carbon weave and advanced resin bonding, these components enhance your GT4
RS’s performance and appearance.
Key Benefits:
8.3%
increase in rear downforce at 200 km/h (with the SilverRocket mini gurney flap).
- 50%
lighter than standard
plastic endplates.
- Improved
high-speed stability
and aerodynamic balance.
- CFD-optimised
design for precision
airflow management.
- Heat
and UV-resistant finish
ensures long-term durability.
- Enhanced
visual appeal with
exposed dry carbon fibre weave.
- Perfect fitment and alignment, designed for direct installation on Porsche 718 GT4 RS.
These upgrades are designed for performance enthusiasts,
track-day drivers, and those who demand motorsport precision with refined
styling.
Highlights:
- 8.3%
increase in rear downforce at 200 km/h, delivering measurable aerodynamic gains.
- Dry
carbon fibre construction
that’s 50% lighter than manufacturer-standard alternatives.
- Motorsport-grade
weave and resin composition for maximum strength and rigidity.
- CFD-engineered
and track-tested for
superior airflow control.
- Sleek,
exposed carbon aesthetic
complements Porsche’s GT design language.
- Precision mounting design ensures easy installation and perfect aerodynamic alignment.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9GT827867A
The product you are viewing cross references to these numbers
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
- Porsche Cayman GT4 RS Clubsport 2020-2024
SilverRocket Dry Carbon Mini Gurney Flap & DRS-1 Rear
Wing Endplate Kit – Aerodynamic Precision for Porsche 718 GT4 RS
The SilverRocket Dry Carbon Mini Gurney Flap & DRS-1
Rear Wing Endplate Kit elevates Porsche 718 GT4 RS aerodynamics to true
motorsport standards. Designed for maximum performance and refined style, this
lightweight kit combines aerospace-grade dry carbon fibre construction
with CFD-optimised design to improve high-speed stability and downforce
efficiency.
Fits:
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
- Porsche Cayman GT4 RS Clubsport
2020-2024
The Mini Gurney Flap enhances the rear wing’s aerodynamic profile, while the DRS-1 Endplates streamline airflow across the wing edges, reducing turbulence and drag. Together, these upgrades deliver an 8.3 % increase in rear downforce at 200 km/h, ensuring superior rear-axle stability, sharper cornering, and enhanced driver confidence — both on road and track.
What Do They Do?
The kit’s components perform complementary aerodynamic functions:
Mini Gurney Flap
- Generates
additional downforce by energising airflow over the wing.
- Improves
high-speed balance and cornering stability.
- Increases aerodynamic grip without adding drag.
DRS-1 Endplates
- Control
lateral airflow to minimise pressure loss and turbulence.
- Enhance
downforce consistency across the entire wing span.
- Improve top-speed efficiency by reducing aerodynamic drag.
Why Standard Wing Components Fail
Typical plastic or composite rear-wing components degrade
under heat and aerodynamic load. Failures often occur due to:
- Material
fatigue or flexing during sustained high-speed use.
- Heat
deformation and UV-related cracking.
- Weak
structural bonding that causes vibration and air leakage.
- Inefficient geometry that disturbs airflow and reduces stability.
The SilverRocket kit overcomes these flaws using motorsport-grade carbon fibre layered with advanced resin bonding and a high-temperature resistant finish — guaranteeing strength, precision, and longevity even in demanding track conditions.
Why Upgrade to SilverRocket Carbon Aerodynamics
Replacing standard components with the SilverRocket kit offers quantifiable gains in both performance and aesthetics.
Key Benefits:
- +8.3
% rear downforce at 200 km/h for unmatched stability.
- 50
% lighter than standard alternatives, improving handling response.
- Aerospace-grade
dry carbon fibre ensures superior stiffness-to-weight ratio.
- CFD-validated
aerodynamic design reduces drag and enhances efficiency.
- UV
and heat-resistant finish ensures long-term durability.
- Perfect
fitment with manufacturer-quality alignment and mounting.
- Aggressive motorsport styling, highlighting the GT4 RS’s race-bred character.
Highlights
- Unique
SilverRocket Mini Gurney Flap enhances the GT4 RS wing’s sporty
aesthetic.
Combined with - Combined
with DRS-1 Endplates, delivers +8.3 % rear downforce at 200 km/h.
- Dry
carbon fibre construction is 50 % lighter than standard
plastic.
- CFD-tested
aerodynamic geometry ensures measurable performance gains.
- Motorsport-grade
materials withstand extreme track conditions.
- Improves high-speed stability, cornering control, and rear-end balance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9GT827867A
The product you are viewing cross references to these numbers
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
- Porsche Cayman GT4 RS Clubsport 2020-2024
SilverRocket EVO-X dry carbon fibre ducktail gurney flap for the Porsche 992.1 GT3 RS. This model-specific rear aerodynamic component follows the factory decklid profile and adds a purposeful motorsport-influenced detail.
Fits:
Porsche 992.1 GT3 RS 4.0L 2022-24
What This Product Does
The flap modifies airflow separation at the trailing edge of the decklid. Its raised profile is designed to create a controlled low-pressure region and contribute additional rear downforce while retaining the characteristic lines of the 992.1 GT3 RS.
Functions
- Manages airflow at the decklid trailing edge
- Increases the effective aerodynamic camber of the rear surface
- Supports rear-axle stability at higher speeds
- Adds a defined ducktail-style rear profile
- Integrates with the original decklid contours
Technical Details
- Silver Rocket EVO-X aerodynamic component
- Manufactured from dry carbon fibre
- High-gloss exposed carbon finish
- Carbon weave developed to coordinate with Weissach Package components
- Installed using automotive adhesive tape
- No drilling or permanent decklid modification specified by the manufacturer
Symptoms of Fault
- Lifting or movement caused by deteriorated adhesive
- Rattling or vibration around the decklid
- Cracks or damage following an impact
- Fading, lacquer wear or carbon-fibre delamination
- Uneven positioning against the decklid edge
Why Replacement Matters
A loose or damaged gurney flap may cause vibration, unwanted noise or contact with adjacent painted surfaces. Correct surface preparation and careful alignment are important for a secure, even installation. The component should be dry-fitted before its adhesive backing is applied, with the mounting area kept clean and free from wax, grease and contamination.
FAQs
- Is this gurney flap model-specific? It is shaped for the Porsche 992.1 GT3 RS factory decklid.
- Does installation require drilling? No. Silver Rocket specifies installation with automotive adhesive tape and no permanent modification.
- How should the surface be prepared? Clean and dry the decklid thoroughly, remove wax or grease and confirm alignment by dry-fitting before applying the adhesive.
- Does it match Weissach Package carbon fibre? The high-gloss weave is designed to coordinate with the exposed carbon appearance of factory Weissach Package components.
- Should a damaged flap be replaced? Replacement should be considered if the carbon is cracked, delaminated or no longer held securely against the decklid.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9GT827770
The product you are viewing cross references to these numbers
- Porsche 992.1 GT3 RS 4.0L 2022-24