Upgrade the rear end of your 718 with a precision-crafted carbon fiber rear diffuser that blends race-bred function with premium show-car finish. Designed specifically for Porsche 718 Cayman and Boxster models from 2016–2023, this diffuser improves airflow management, sharpens the car’s stance, and adds a high-end OEM+ look — without compromising fitment or daily drivability.
Exact fit for Porsche 718 (2016–2023) — engineered to match the factory mounting points for a direct-fit installation on Cayman and Boxster 718 chassis.
Premium carbon fiber construction — made from high-strength 2x2 twill carbon fiber laminate with a durable clear coat for UV resistance and long-lasting gloss.
Lightweight and stiff — far lighter than equivalent OE plastic components while retaining excellent structural rigidity.
Functional aero shaping — sculpted vane geometry and optimized exit channels reduce turbulence under the rear bumper and promote cleaner airflow, improving stability at speed.
Hand-finished quality — every piece is inspected and hand-polished to ensure consistent weave alignment, smooth edges, and a showroom surface finish.
Complete hardware kit — includes stainless steel fasteners, foam seals, and trimmed mounting clips where required for a secure, rattle-free fit.
Direct-replacement or bolt-on upgrade — maintains factory bumper interface; no trimming of the bumper needed in most installations.
1x Carbon fiber rear diffuser (2x2 twill, clear-coated)
Fastener & mounting kit (as pictured)
Foam backing/seal strips for vibration damping and perfect panel gaps
Instruction sheet with step-by-step fitment guidance
Compatible with Porsche 718 Cayman and 718 Boxster models produced between 2016 and 2023 (718 chassis).
For vehicles with aftermarket exhausts, rear sensors, or factory aero packages, verify clearance before installation — contact us with your VIN if you’re unsure.
Does not include rear bumper or lower valance — this is a direct-fit diffuser designed to replace the factory lower diffuser section.
Constructed from premium carbon fiber fabric laminated with high-grade epoxy resin under controlled heat and pressure, then finished with a multi-layer UV-resistant clearcoat. The result is a lightweight structural component with a deep, glossy carbon finish that resists yellowing and stone chips in normal driving conditions.
Sharper visual presence: transforms the rear profile with an authentic motorsport look.
Improved airflow: the fins and channels help manage rear underbody airflow for more composed high-speed behavior.
Weight savings: reduces unsprung and overall mass compared to many OEM plastic or fiberglass replacements.
Durability: carbon fiber + clearcoat stands up to the elements and maintains finish far longer than painted plastic.
Professional installation recommended for best results but can be performed by a competent enthusiast with standard hand tools.
Typically uses factory mounting locations and included hardware — no cutting required in most cases.
Align carefully and use the supplied foam seals to prevent vibration and maintain OEM-like panel gaps.
Wash with mild automotive shampoo; avoid high-acid wheel cleaners on the clearcoat.
For scratches or haze, light polishing with a non-abrasive automotive polish will restore gloss.
Park in shade or use a car cover when possible to extend clearcoat life and preserve the carbon look.
Fitment:
Elevate the style and performance of your Porsche with Eurobahndynamics.
