JCR Titanium Non-Valved Race Exhaust Kit for 982 Porsche 718 Cayman GT4 RS / Spyder RS

JCR Titanium Non-Valved Race Exhaust Kit for 982 Porsche 718 Cayman GT4 RS / Spyder RS

The JCR Titanium Non-Valved Race Exhaust Kit for the 982 Porsche 718 Cayman GT4 RS and Spyder RS is engineered to maximize performance and deliver a complete exhaust experience. This kit includes both the Silenced and Non-Silenced rear silencers, providing the perfect balance between a refined tone for street driving and an aggressive, unrestricted exhaust note for track use. The system can be further personalized with Titanium Megaphone Tips or Titanium Weissach Tips, available in Polished, Raw (weissach only), or Black Coated finishes. Designed to enhance both the performance and appearance of the 718 Cayman GT4 RS and Spyder RS, this comprehensive kit ensures you enjoy the best of both worlds.

Direct Replacement / Modular Fitment

• The JCR Titanium Race Exhaust System is a full direct replacement for the OEM 718 GT4 RS rear silencer assembly. No fabrication is required — simply remove the factory silencer and install the JCR Race Exhaust System using the original mounting points. Titanium Megaphone Tips are included as standard, with additional tip options available. The tips are secured with motorsport-grade v-band clamps, ensuring precise alignment and allowing for fast changes at the track. Titanium Silenced Tips are also available, reducing sound levels by 5-6dB to comply with stricter track noise regulations.

Light Weight

• Thanks to its titanium construction and lightweight design, the JCR Titanium Race Exhaust System meets all performance objectives while cutting the OEM system’s weight by over 50%. This upgrade not only boosts performance but also provides a substantial weight reduction.

Performance Increase

• All components in the JCR Titanium Exhaust range are engineered to deliver measurable horsepower and torque improvements, with gains varying by configuration. The direct replacement rear silencer alone produces up to 11 horsepower and 5lb-ft of torque, with performance increases felt across the full RPM range.

Non-Valved, Modular Design

• The Non-Valved Race Exhaust System eliminates the factory valve system, creating an unrestricted exhaust tone throughout the RPM range. Its modular design allows for quick installation of either Silenced or Non-Silenced sections, making it easy to adapt the system for quieter operation or full open-track performance.

JCR Tips

• During development of the 718 GT4 RS exhaust system, JCR determined that the factory Titanium Weissach tips could not be reused without compromising performance, as their narrow internal diameter restricted exhaust flow. To resolve this, JCR engineered their own Titanium Tips inspired by the factory Weissach design, along with a traditional Titanium Megaphone option. Both Titanium Megaphone and Titanium Weissach Tips are available in polished or black-coated finishes.

GT3 Style Sound

• The sound profile of the JCR Titanium Race Exhaust System has been tuned to echo the character of JCR’s acclaimed GT3 systems. The exhaust note evolves from a muted tone to a vibrant, high-pitched flat-six wail, with greater volume on demand. Using the same merge collector design as JCR’s other Race Exhaust Systems, the 4.0L GT3-derived engine now delivers a thrilling howl at 9000rpm.

Features

• 100% titanium construction
• Includes Silenced & Non-Silenced sections
• Direct replacement & quick installation
• Emissions unaffected, no chance of engine lights
• Modular exhaust tips
• 11hp & 5tq increase versus OEM
• 10.90kg weight saving vs OEM exhaust (silenced)
• 12.90kg weight saving vs OEM exhaust (non-silenced)

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
• Inconel Race Exhaust Manifolds
• 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

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.