JCR Inconel Silencers for 9YA / 9YB Porsche Cayenne S and Turbo (facelift)

JCR Inconel Silencers for 9YA / 9YB Porsche Cayenne S and Turbo (facelift)

The JCR Inconel Silencers are a direct replacement for the OEM downpipes on the 9YA / 9YB Porsche Cayenne S and Turbo, engineered to save weight, improve sound, and boost performance. Crafted from 100% Inconel 625, the system is available in two configurations. The Race Silenced version features a high-flow HJS 200-cell core and saves over 7kg, while the Silencer Delete version offers maximum performance and sound, saving over 9.5kg. Both options are equipped with high-quality Inconel heat shielding and are guaranteed to increase horsepower and torque.

Version

• Race Silencers: JCR’s Inconel Race Silencers utilize a high-flow HJS 200-cell core. Flow is therefore greatly increased, and improved performance follows. For cars with no OPF monitoring, JCR’s Race Silencers in most cases will not cause any CEL and do not require any tuning. In certain instances, it’s still possible for a CEL to occur. This tends to happen if the car has poor fuel quality or excess load is applied when the engine and exhaust system are not up to full operating temperature. With this in mind, JCR does not guarantee that there is no chance of a CEL with these parts installed.
• Silencer Deletes: With the JCR Inconel Silencer Deletes, the factory restrictive assembly is removed for maximum performance and sound. Rather than simply removing the cat from their Race Silencer products, JCR created a whole new profile to correctly control the gasses from the turbo flange down to the main flow path to optimize performance.

Light Weight / Inconel 625 Construction

• Through the use of lightweight materials and clever design, JCR has managed to reduce the overall weight of the factory Cayenne downpipes by a significant amount. JCR’s Cayenne Downpipes are manufactured using Inconel 625 material, which not only performs extremely well in high heat applications but also has an extremely high tensile strength, allowing for a thin wall thickness. This reduces weight versus a stainless steel equivalent by up to 40%.

Direct Replacement

• All of the JCR 9Yx Cayenne 4.0 TT exhaust components are direct replacements for their OEM counterparts with a guaranteed perfect fit every time. No further work is required during installation beyond removing the OEM part and replacing it with its JCR equivalent and any supplied hardware.

Heat Management

• This product features the highest quality thermal protection as standard. The heat shielding JCR has selected is used in the highest levels of motorsport to control temperatures while protecting and dramatically reducing the effects of radiant heat into the surrounding areas.

Power Increase

• Every component of the JCR Titanium Exhaust line is guaranteed to improve horsepower and torque, with varying results dependent on the combination of parts. JCR’s most extreme free-flowing system will see gains in the mid-30 HP and TQ range with the stock ECU tune. Customers can also expect great improvements in overall engine response, transient throttle response, and boost building earlier in the RPM range.

Features

• 100% inconel 625 construction
• Inconel 625 HJS 200-cell Race Silencers or Silencer Deletes
• Upgrades OEM OPF Matrix
• Inconel heat shielding
• Direct replacement parts
• 7.38kg weight reduction vs OEM downpipes (race silencer version)
• 9.70kg weight reduction vs OEM downpipes (silencer delete version)
• Improved sound quality
• Around 30hp & 30tq increase (with OEM ECU tune)

Applications

• Porsche Cayenne S: 9YA, 9YB (2024-present) [4.0L V8 TT EA825TT]
• Porsche Cayenne Turbo E-Hybrid: 9YA, 9YB (2024-present) [4.0L V8 TT EA825TT]
• Porsche Cayenne Turbo GT: 9YB (2024-present) [4.0L V8 TT EA825TT]

Notes

• Also compatible on Turbo E-Hybrid coupe models with GT Package 
• Only compatible with facelift models (2024+)

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.