Protect your engine from the heat of the street and track with the ISR Performance Silicone Radiator Hose Kit for the Nissan 370Z (SKU: IS-RH-Z34-BLK). Designed specifically for the 2009+ Z34 chassis, these hoses are the ultimate replacement for the factory rubber units that tend to become brittle, soft, and prone to leaking after years of high-temperature engine cycles.

While rubber hoses eventually fail under pressure, the ISR Performance kit uses multi-ply reinforced silicone to provide a much higher threshold for heat and internal pressure. The Black finish is perfect for enthusiasts who want a stealthy, professional look that blends in with the factory plastics while providing significantly better-than-factory performance.

Key Performance Features & Benefits:

• Heavy-Duty Silicone Construction: Features 4-ply reinforced silicone walls that prevent hose expansion (ballooning) and ensure consistent coolant flow, even during aggressive driving or track days.

• Engineered for the VQ37VHR: Precision-molded to fit the unique routing of the 370Z cooling system, ensuring a perfect bolt-on fitment with no trimming required.

• Extreme Thermal Resistance: Rated to handle significantly higher temperatures than standard OEM rubber, making this kit essential for cars with aftermarket oil coolers or forced induction.

• Stealth Black Aesthetic: Offers a clean, high-performance look that upgrades your engine bay without being overly flashy—ideal for a refined street or show build.

• Leak-Free Reliability: Silicone is naturally resistant to the corrosive effects of modern coolants and will not crack or rot over time like traditional rubber.

• Smooth Interior Bore: Minimizes coolant turbulence, allowing your water pump to move fluid more efficiently through the radiator and block.

Whether you are performing routine maintenance or building a dedicated track machine, the ISR Performance Black Silicone Hose Kit provides the peace of mind that your cooling system is "overbuilt." Shop genuine ISR Performance parts at Straight Six Imports and enjoy fast shipping and expert support for your 370Z.