JCR Rear Wing Uprights for 981 / 982 Porsche Cayman GT4 and 718 Cayman GT4

JCR Rear Wing Uprights for 981 / 982 Porsche Cayman GT4 and 718 Cayman GT4

The JCR Rear Wing Uprights for the 981 / 982 Porsche Cayman GT4 and 718 Cayman GT4 are available in two advanced material options — Billet Aluminum and 3D-Printed Titanium. The Billet Aluminum version is precision-machined from high-quality billet aluminum, offering improved strength, durability, and a greater range of adjustment for the rear wing. Featuring titanium fixings and available in raw or black finishes, these uprights are designed for seamless integration with the JCR rear wing. The 3D-Printed Titanium option utilizes cutting-edge 3D printing technology and high-strength titanium, delivering a significant weight reduction over OEM parts while offering enhanced strength and durability. Also available in raw or black finishes, these uprights provide optimized aerodynamics and improved handling. Both options are direct replacements for the factory uprights and are only compatible with the OEM GT4 RS rear wing, ensuring easy installation and an upgrade that enhances both performance and the car’s visual appeal, making them ideal for enthusiasts seeking to improve their vehicle’s aerodynamics and aesthetics.

Optimized Aero

• The 718 GT4 RS features a significantly larger rear wing element than the 981 GT4 or 718 GT4. This wing produces more downforce and is top-mounted for greater efficiency. The JCR Wing Uprights are a 100% direct fit, enabling seamless installation of a OEM GT4 RS rear wing into a more optimized position (up and back) compared to the factory position on the 718 GT4 RS. The revised wing position enhances the efficiency of the factory rear wing by increasing its effectiveness, resulting in improved aero balance with a lower angle of attack (AOA) and less drag. Additionally, the base angle of attack has been altered to allow for a more aggressive range of adjustment, opening the possibility of adding more downforce to the front end with the use of JCR’s upcoming front aero options.

CNC Billet Aluminium Construction

• At the start of the project, JCR outlined the main design criteria and goals for the JCR Billet Aluminium Wing Uprights. There are several small details incorporated into the design that, while minor on their own, collectively contribute to an impressive overall result. This level of attention to detail is consistent across the entire JCR product range.
  • Improved aero performance & increased aero efficiency
  • Stiffer & stronger vs OEM wing uprights
  • Weight reduction vs OEM wing uprights
  • OEM+ design language
• The Billet Aluminium Wing Uprights are crafted from 6082-T6 Aluminium and CNC cut on a state-of-the-art 5-Axis machine. These uprights are not only stiffer and stronger than the factory parts but also reduce weight, making them a true win-win modification. The uprights are available in raw or black finishes and come with Billet Titanium Fixings — lightweight, strong, and corrosion-resistant.

High-Tech 3D Printed Titanium Construction

• Similarly, at the start of the project, JCR set out the main design criteria and goals for the JCR 3D Printed Titanium Wing Uprights. The design features several small details that, when combined, result in an outstanding final product. This attention to detail is a hallmark of JCR’s approach across all products.
  • Ultimate solution utilizing cutting edge technology
  • Improved aero performance & increased aero efficiency
  • Stiffer & stronger vs OEM wing uprights
  • Weight reduction vs OEM wing uprights
  • OEM+ design language
• For those seeking the ultimate in high-tech construction, JCR offers Titanium 3D Printing for the 3D Printed Titanium Wing Uprights. This method allows JCR to create a unique hollow design that reduces mass by 27% compared to the factory wing uprights. The uprights are stiffer, stronger, and lighter than the OEM parts, further enhancing the vehicle’s performance. Also available in raw or black finishing and supplied with Billet Titanium Fixings, offering exceptional strength and corrosion resistance.

Direct Replacement

• The JCR Wing Uprights are a direct replacement for the factory parts, using the OEM mounting points, and are suitable for both the 981 and 718 GT4 models. JCR prioritizes an OEM+ appearance for all exterior modifications, ensuring that the upgrades seamlessly integrate with the factory design while delivering improved performance.

Features

• Full CNC billet aluminium or 100% 3D-printed hollow titanium construction options
• 100% direct replacement
• Improved rear stability
• Larger range of adjustment
• Choice of raw or black finish
• Titanium fixings
• Each option is sold as a pair

Applications

• Porsche 718 Cayman GT4: 982 (2019-present)
• Porsche Cayman GT4: 981 (2015-2016)

Notes

• This product is only compatible with the OEM 718 GT4 RS Rear Wing

About JCR Developments

JCR Developments is an engineering-led performance brand specializing in high-end exhaust and motorsport-derived upgrade solutions for marquee supercars and enthusiast platforms. Known for its expertise in advanced materials such as Inconel and lightweight stainless alloys, JCR focuses on reducing mass, improving thermal efficiency, and unlocking authentic, emotionally engaging sound without compromising drivability or OEM systems integration. Each component is designed through data-driven development, track-informed testing, and precision fabrication, resulting in products that deliver measurable performance gains alongside elevated craftsmanship. Serving discerning drivers, collectors, and professional build shops worldwide, JCR Developments combines technical rigor with boutique-level customer support to enhance the character, capability, and long-term enjoyment of iconic vehicles.