2017-2025 Porsche 718 Boxster & Cayman (982) GT4 Style Polypropylene Rear Diffuser | E3Tuning

Enhance the trailing edge of your Porsche 718 Boxster or Cayman (982) with an aggressive GT4-inspired silhouette that adds immediate visual depth to the rear bumper. This polypropylene rear diffuser frames the factory exhaust configuration with sharp vertical strakes and a widened profile, creating a more purposeful and grounded aesthetic without requiring hardware modifications.

For owners who have parking distance controllers (PDC) please know that our GT4 style diffuser does come with brackets as part of the kit, however you or your bodyshop will need to drill the holes. We recommend using the location highlighted below to avoid false readings. We don't recommend mounting the sensors such that they face the ground or are too close the raised air channels as they may cause interference with the ultrasonic readings.

• GT4 visual signatureThis upgrade introduces the signature multi-finned design of the track-ready GT4, sharpening the rear fascia of your 982 Boxster or Cayman.
• Precise material constructionMolded from durable polypropylene, this piece ensures long-term structural integrity while maintaining a high-quality surface finish.