Mishimoto 2023+ Nissan Z Silicone Coolant Hose Kit - RedDuring development of various Nissan Z components our engineers noted that the factory rubber coolant hoses are a potential area of failure as your Z begins to age. So, we set out to develop a replacement hose kit using durable silicone thats guaranteed to outlast and outperform your stock hoses. Mishimoto silicone hoses are constructed from five layers of silicone with embedded heat resistant fibers. The silicone construction improves heat tolerance,