Description
Enhance the rear profile and aerodynamic performance of your Porsche Cayman GT4 981 with the AF-1 Rear Diffuser (GFK). Designed for enthusiasts who demand both aggressive styling and reliable durability, this 1-piece rear diffuser delivers improved airflow management while maintaining a factory-quality fit and finish.
Manufactured using advanced Glass Fibre Komposite (GFK), this diffuser is constructed from milled and cross-woven fibres through a proprietary process that ensures exceptional strength, flexibility, and long-term durability. The result is a lightweight yet impact-resistant component engineered to withstand daily driving and spirited performance use.
Each Aero Function Glass Fibre Komposite product comes standard with a double-layered signature gray primer. This reduces preparation time before paint while ensuring a smooth and superior final finish. Where applicable, the diffuser includes a honeycomb black mesh grille for added visual depth and airflow optimization.
Built under a strict Five-Stage Aero Function Quality Control Assurance Manufacturing System, every unit is carefully inspected to meet high standards of precision and consistency. The product is also backed by a 3-year limited Aero Function manufacturer’s warranty and shipped using an extensive Ship-Safe packaging and protection system to reduce the risk of freight damage.
This AF-1 rear diffuser is part of Aero Function’s exclusive limited production lineup, offering a distinctive upgrade for your Cayman GT4 while maintaining high durability and aerodynamic refinement.
Key Features
• 1-piece AF-1 rear diffuser design
• High-quality Glass Fibre Komposite (GFK) construction
• Strong, lightweight, flexible, and impact-resistant material
• Double-layered signature gray primer for easier paint preparation
• Honeycomb black mesh grille (where applicable)
• Five-Stage Quality Control Assurance Manufacturing System
• 3-year limited Aero Function manufacturer’s warranty
• Extensive Ship-Safe packaging system
• Exclusive limited production availability
• Modified aerodynamics for improved rear airflow
Vehicle Fitment
2013 Porsche Cayman GT4 981
2014 Porsche Cayman GT4 981
2015 Porsche Cayman GT4 981
2016 Porsche Cayman GT4 981