JCR Inconel Race Exhaust Manifold & Link Pipe Assembly for 982 Porsche 718 Boxster GTS 4.0 and Spyder / 718 Cayman GT4 and GTS 4.0

JCR Inconel Race Exhaust Manifold & Link Pipe Assembly for 982 Porsche 718 Boxster GTS 4.0 and Spyder / 718 Cayman GT4 and GTS 4.0

The JCR Inconel Race Exhaust Manifold & Link Pipe Assembly for the 982 Porsche 718 Boxster GTS 4.0, Spyder, Cayman GT4, and GTS 4.0 are designed to optimize the performance of the 4.0L flat-six engine. The Inconel Race Exhaust Manifolds, made from high-performance Inconel 625, feature equal-length primaries and optimized collector dimensions to maximize exhaust flow and reduce backpressure, resulting in a gain of approximately 38 horsepower and 34lb-ft of torque. They also reduce weight by over 10.5lbs, improving vehicle dynamics. Paired with either the Inconel Silenced Link Pipes or the Titanium Non-Silenced Link Pipes, this assembly delivers a seamless fit and easy installation. The Inconel Silenced Link Pipes reduce noise at lower speeds while enhancing the exhaust tone when the valves are open, maintaining emissions compliance and preventing check engine lights. The Titanium Non-Silenced Link Pipes, on the other hand, replace the factory OPF system, improving exhaust flow, throttle response, and delivering a race-inspired exhaust note. Both options provide a significant performance boost, an aggressive sound, and an overall exhilarating driving experience.

Direct Replacement / Modular Fitment

• The JCR Inconel Race Manifolds and Link Pipes are a complete direct replacement for the OEM 718 GT4 and Spyder manifolds and OPF pipes, requiring no fabrication or additional parts. Simply remove the factory manifolds and OPF pipes, and replace them with the JCR Inconel Race Manifolds and Link Pipes. This combination is supplied with all necessary hardware, ensuring a smooth and hassle-free installation.

Heat Management

• Each of the JCR Link Pipe options comes equipped with the highest quality thermal protection as standard. The selected heat shielding is used in the highest levels of motorsport to control temperatures and significantly reduce the effects of radiant heat on surrounding areas. Extensive testing was performed on track, with and without thermal protection, showing a consistent reduction of 15-20°C in inner rear tire temperatures. This temperature reduction provides a real-world performance advantage over an OPF delete without thermal protection.

Silenced Link Pipes

• The JCR Inconel Silenced Link Pipes offer all the benefits of the standard Non-Silenced Titanium Link Pipes, with the added advantage of a reduction in dB levels and a 200-cell HJS Race Cat. This allows for horsepower and torque gains while keeping exhaust volume only slightly above the factory OPF pipes, ensuring emissions compliance. These link pipes are an ideal choice for track cars with strict noise limits and street cars that require functional catalytic converters.

Light Weight

• Thanks to their 100% Inconel / Titanium construction, the JCR Inconel Race Manifolds and Link Pipes significantly reduce the weight of the factory exhaust system, providing a notable performance improvement. This modification offers a true win-win benefit.

Power Increase

• Every component in the JCR Exhaust line is guaranteed to increase horsepower and torque, with varying results depending on the part combination. The most extreme free-flowing system installed on the 718 GT4 / Spyder / GTS 4.0 can yield gains of up to +52.40whp and +47.00wtq (60.26hp / 54.05tq), along with notable improvements in engine response and mid-range torque. Removing the highly restrictive factory cats not only gives the car a hard-edged race car sound but also drastically improves flow, resulting in increased horsepower and torque.

Features

• 100% inconel / titanium construction
• Direct replacement for OEM manifolds & link pipes (choice of Inconel Silenced or Titanium Non-Silenced)
• 10.95kg (24.14lbs) weight reduction vs OEM
• Improved sound quality
• Substantial power gains [+52.40whp and +47.00wtq (60.26hp / 54.05tq)]

Applications

• Porsche 718 Boxster GTS 4.0: 982 (2020-present) [4.0L F6]
• Porsche 718 Cayman GT4: 982 (2019-present) [4.0L F6]
• Porsche 718 Cayman GTS 4.0: 982 (2020-present) [4.0L F6]
• Porsche 718 Spyder: 982 (2019-present) [4.0L F6]

More JCR Exhaust Products for 718 GT4, 718 GTS 4.0, and 718 Spyder

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

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.