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

$398.00 USD$499.00 USD
Specifications Part numbers, fitment codes and shipping
Brand
E3Tuning
Speedzone SKU
E1P1-0240-21212.00G4
Manufacturer part number
E1P1-0240-21212.00G4
UPC
ER-AS1510-R
Category
Rear Diffuser
Item is in stockHurry! Low inventoryItem is out of stock Item is unavailable
Quantity
Notes

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.

718 cayman gt4 style rear diffuser with parking sensor PDC installed
Thank you @lolorider for providing insight on this installation. If you are wondering how to transplant the original sensors from your vehicle onto the new GT4 style diffuser, here's one confirmed working method with no false readings.
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Key Benefits
  • 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.
02
Vehicle Compatibility
Year Make Model (Chassis) Body Style Fitment Notes
2017-2025 Porsche 718 Boxster / Cayman (982) Coupe / Convertible Fits Base, S, and Style Edition. Does not fit GTS models due to exhaust tip spacing.

Full details on shipping times, returns, warranty and cancellations are on our policy page.

Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.

Answers to common questions are on our FAQ page.


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