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Mini Gurney Flap for OEM wing in Dry Carbon Fibre. Porsche 718 Cayman GT4 RS ❭ SRMGFOEM
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
- Porsche Cayman GT4 RS Clubsport 2020-2024
SilverRocket Dry Carbon Mini Gurney Flap – Aerodynamic
Precision for Porsche 718 GT4 RS
The SilverRocket Dry Carbon Mini Gurney Flap is a
precision-engineered aerodynamic enhancement designed to optimise rear
downforce and visual appeal for the Porsche 718 GT4 RS. Crafted from aerospace-grade
dry carbon fibre, this component delivers exceptional rigidity,
ultra-lightweight performance, and refined styling inspired by modern GT
racing.
Fits:
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
- Porsche Cayman GT4 RS Clubsport
2020-2024
When paired with SilverRocket’s DRS-1 Dry Carbon Rear Wing Endplates, the Mini Gurney Flap delivers an 8.3% increase in rear downforce at 200 km/h, resulting in greater high-speed stability, enhanced grip, and improved aerodynamic balance — without adding drag.
This subtle yet powerful upgrade enhances the sporty profile of the GT4 RS’s standard rear wing, giving it a more aggressive track-ready appearance while delivering measurable aerodynamic gains.
What Does a Mini Gurney Flap
Do?
A gurney flap is a small aerodynamic tab mounted along the
trailing edge of a wing. Though compact, it plays a vital role in increasing
downforce by modifying airflow and pressure distribution over the rear
wing.
Core Functions:
- Increases rear downforce by energising airflow over the wing surface.
- Improves high-speed stability and cornering control.
- Enhances braking performance by maintaining rear-end grip.
- Balances aerodynamic load, ensuring predictable handling at speed.
The SilverRocket Mini Gurney Flap is designed to complement Porsche’s GT aerodynamics, adding measurable aerodynamic benefit with race-inspired precision.
Why Do Standard or Aftermarket Gurney Flaps Fail?
Over time, lower-grade or poorly designed gurney flaps can
lose structural integrity and aerodynamic precision. Common causes of failure
include:
- Material
fatigue from constant aerodynamic load.
- UV
or heat damage causing warping or delamination.
- Weak
mounting surfaces leading to vibration or instability.
- Poor aerodynamic profiling that increases drag rather than reducing it.
The SilverRocket Mini Gurney Flap overcomes these issues through motorsport-grade carbon fibre construction, precision machining, and a heat-resistant resin system, guaranteeing durability and consistent aerodynamic performance.
Why Upgrade to SilverRocket’s Dry Carbon Mini Gurney Flap?
Upgrading to SilverRocket’s dry carbon gurney flap offers both functional and aesthetic advantages, elevating the aerodynamic sophistication of your Porsche 718 GT4 RS.
Key Benefits:
- +8.3%
rear downforce at 200 km/h when paired with DRS-1 endplates.
- Aerospace-grade
dry carbon fibre construction — ultra-light yet incredibly strong.
- Motorsport-tested
aerodynamic efficiency, ensuring improved stability and traction.
- CFD-optimised
shape for drag-free aerodynamic gains.
- UV
and heat-resistant finish for lasting durability.
- Enhanced
styling that sharpens the GT4 RS’s rear wing profile.
- Direct-fit installation for a seamless upgrade to the standard rear wing.
This upgrade combines cutting-edge aerodynamics with refined design — ideal for Porsche enthusiasts seeking track-proven performance and authentic GT styling.
Highlights:
Unique
SilverRocket Mini Gurney Flap enhances the sporty appearance of the
GT4 RS rear wing.
When
paired with DRS-1 endplates, delivers 8.3% higher rear downforce
at 200 km/h.
Improves
high-speed stability and cornering confidence.
Constructed
from lightweight, high-strength dry carbon fibre for optimal
performance.
UV-
and heat-resistant coating ensures long-term durability.
CFD-tested
for aerodynamic accuracy and track-verified results.
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C2S 1994-97

Fits:
Porsche 993 1994-97
Brand:
Genuine Porsche Parts (3 part kit + clamping washers)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SPOILERKIT09
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- 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

Fits:
Porsche 993 1994-97
Material:
Made from Fibre Glass GPR
Note: This spoiler does not come with the grill, please reuse your existing one.
Product Type:
Replica
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
TK30
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
You will also need the original grilles separate parts 99351233303G2X Top Grill
9935125010070K Bottom Grille
Fits:
Porsche 993 1994-97
Material:
Made from Fibre Glass GPR
Product Type:
Replica
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99351251100GRP
The product you are viewing cross references to these numbers
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