JCR Inconel Race Exhaust Manifolds for 982 Porsche 718 Cayman GT4 RS / Spyder RS

JCR Inconel Race Exhaust Manifolds for 982 Porsche 718 Cayman GT4 RS / Spyder RS

The JCR Inconel Race Exhaust Manifolds for the 982 Porsche 718 Cayman GT4 RS and Spyder RS are engineered to deliver maximum performance and durability for both street and track applications. Constructed from lightweight Inconel, these race manifolds significantly reduce weight compared to the factory components while withstanding extreme heat conditions. The precision-designed primary runners optimize exhaust flow, unlocking horsepower and torque gains across the entire RPM range. Designed as a direct performance upgrade, the JCR Inconel Race Manifolds pair perfectly with the rest of the JCR exhaust system to enhance both sound and performance for the ultimate driving experience.

Direct Replacement / Modular Fitment

• JCR Inconel Race Manifolds are engineered as a direct replacement for the OEM 718 GT4 RS and Spyder RS manifold assembly. No fabrication or additional components are required—owners can simply remove the factory exhaust manifolds and install the JCR Inconel Race Manifolds using the original mounting points.

Light Weight

• With their 100% Inconel construction, JCR Inconel Race Manifolds deliver a significant weight reduction over the factory exhaust setup, providing a true performance and efficiency upgrade.

Real World Performance Improvements

• Every component in the JCR Exhaust lineup is designed to enhance horsepower and torque, with results varying depending on the configuration. When paired with JCR’s most extreme free-flowing system, the 718 GT4 RS can achieve gains of up to 35 horsepower, along with sharper throttle response and improved mid-range torque. Each part is developed and validated through extensive track testing, with before-and-after 100-200kph acceleration measurements confirming noticeable real-world performance improvements for every owner who invests in the system.

Features

• 100% inconel construction
• Direct replacement for OEM manifolds
• 3.28kg (7.24lbs) weight reduction vs OEM manifolds
• Improved sound quality
• Peak gains of 22hp & 41tq vs OEM exhaust manifolds
• Sold as a pair

Applications

• Porsche 718 Cayman GT4 RS: 982 (2021-present) [4.0L F6 MDG]
• Porsche 718 Spyder RS: 982 (2021-present) [4.0L F6 MDG]

More JCR Exhaust Products for 718 Cayman GT4 RS / Spyder RS

• Titanium Valved Race Exhaust System
• Titanium Non-Valved & Silenced Race Exhaust System
• Titanium Non-Valved & Non-Silenced Race Exhaust System
• Titanium Non-Valved Race Exhaust Kit
• Titanium Non-Silenced Link Pipe Sections
• Titanium Silenced Link Pipe Sections
• Titanium Race-Silenced Link Pipe Sections
• Titanium Non-Silenced Link Pipes
• Titanium Silenced Link Pipes
• Titanium Race-Silenced Link Pipes
• Inconel Race Exhaust Manifold & Titanium Non-Silenced Link Pipe Assembly
• Inconel Race Exhaust Manifold & Titanium Silenced Link Pipe Assembly
• Inconel Race Exhaust Manifold & Titanium Race-Silenced Link Pipe Assembly
• Titanium Silenced Exhaust Tips
• Titanium Megaphone Exhaust Tips
• Inconel Rolled Exhaust Tips
• Titanium Vapour Blasted Weissach Exhaust Tips
• Inconel Exhaust Tip Adapter Set

Notes

• All models without OPF monitoring do not require an ECU tune, EU specification cars with OPF monitoring will require an ECU tune to avoid CEL

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.