ISR Performance Silicone Radiator Hose - Nissan RB25DET - Blue ISR Has now released a line of Silicone-based coolant hoses that are designed to take a higher range of heat and coolant pressures than OEM style hoses. Silicone has a much higher strength than the OEM rubber hoses which will prevent the hoses from expanding.

• Will only work with stock intake manifold.
• For RB20DET - the top hose hose just needs to be cut to fit (you don't need 90 degree curve)
• Nissan RB25DET - Blue

** All ISR Performance Products are Designed for Off Road Use Only ** LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY