Porsche 718 Boxster / Cayman - Carbon Fiber Rear Diffuser for 2017–2021

Add a performance-focused edge to your Porsche 718 Boxster or Cayman (2017–2021) with our Carbon Fiber Rear Diffuser — a sleek and sporty upgrade designed to enhance both rear-end styling and aerodynamic efficiency. With its clean fin layout and sculpted design, this diffuser sharpens the rear profile while subtly improving airflow beneath the car.

Crafted from 100% premium 3K twill weave carbon fiber, it delivers ultra-lightweight strength and race-inspired looks. A high-gloss UV-resistant clear coat keeps the finish brilliant and protected from fading or weathering, ensuring long-lasting appeal whether on the street or at the track.

Engineered for a precise fit with the factory rear bumper, this diffuser flows seamlessly with Porsche’s design language while giving your 718 a more athletic, motorsport-inspired look.

Key Features:

Fitment: Porsche 718 Boxster / Cayman (2017–2021)

Style: Sport-style rear diffuser with clean, aerodynamic fin layout

Material: 100% premium 3K twill weave carbon fiber

Finish: Glossy UV-resistant clear coat for long-term shine and durability

Design: Sculpted to match OEM bumper lines for a refined, aggressive look

Function: Enhances airflow, improves rear-end styling, and adds a sporty presence

Installation: Direct bolt-on fit; professional installation recommended

Refine the rear of your 718 with a carbon fiber diffuser that blends Porsche elegance with motorsport spirit — lightweight, sharp, and performance-driven.