JCR Inconel Valved Race Exhaust System for 918 Porsche 918 Spyder

JCR Inconel Valved Race Exhaust System for 918 Porsche 918 Spyder

The JCR Inconel Valved Race Exhaust System for the 918 Porsche 918 Spyder enhances one of Porsche’s most iconic models, addressing areas for improvement. By incorporating Inconel 625 and advanced motorsport heat shielding technology, JCR has successfully extracted additional power while introducing a remarkable new exhaust tone. This upgrade transforms the car’s character, especially when the roof is removed, amplifying both performance and sound.

Direct Replacement / Modular Fitment

• The JCR Inconel Valved Race Exhaust System serves as a complete direct replacement for the OEM 918 Spyder rear silencer. No fabrication or additional parts are needed — simply remove the factory unit and install the JCR Inconel Valved Race Exhaust System to enjoy significant weight savings, increased power, and an extraordinary sound.

Heat Management

• The JCR Inconel Valved Race Exhaust System for the 918 Spyder comes equipped with the highest quality thermal protection. The heat shielding used is sourced from the top levels of motorsport, designed to effectively manage temperatures and drastically reduce the impact of radiant heat on surrounding components.

Exotic Sound

• The sound signature of the JCR Inconel Valved Race Exhaust System has been meticulously engineered to complement the 918 Spyder’s impressive capabilities. The previously flat and uninspiring exhaust note has been replaced with a striking V8 howl, now accompanied by a more substantial volume when desired. Through JCR’s calculated merge design, the 4.6L V8 in the 918 Spyder comes to life with a refined and exotic tone. This system maintains factory valve control, allowing for quiet cruising with valves closed, while providing the option for a significant volume increase when valves are open.

Light Weight

• Thanks to the choice of materials and construction, JCR was able to achieve all performance goals while reducing the weight of the OEM system by over 50%. This results in a net weight savings of more than 7.81kg (17.2lbs) from the rear of the vehicle, benefiting the car’s overall performance by reducing mass at a high, central location.

Performance Increase

• Each component of the JCR exhaust line is engineered to deliver an increase in horsepower and torque, with gains varying based on the specific combination of parts installed.

Features

• 100% inconel 625 construction
• OEM valve control retained
• Fully inconel heat-shielded parts
• Improved sound quality
• 7.81kg (17.2lbs) weight reduction vs OEM – (exhaust system only)
• 14.58kg (32.14lbs) weight reduction vs OEM – (exhaust system + downpipes)
• 100% direct replacement
• Compatible with OEM catalytic converter sections
• Option to pair with Race Downpipes to complete system

Applications

• Porsche 918 Spyder: 918 (2013-2015) [4.6L V8 M18.00, electric motors]

More JCR Exhaust Products for 918 Spyder

• Inconel Race Downpipes

Notes

• Bolts up to OEM catalytic converters

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.