K20 K20Z1 Silicone Pre Fit Heater Hoses K Series K Swap EG EK DC2 Civic Si CRX •LSx - Fastener Style: Stud

- Fastener Style: Stud

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K20 K20Z1 Silicone Pre Fit Heater Hoses K Series K Swap EG EK DC2 Civic Si CRX •LSx - Fastener Style: StudK20 K20Z1 Silicone Pre Fit Heater Hoses K Series K Swap EG EK DC2 Civic Si CRX One end is made to fit the smaller heater core side and the other end is made slightly larger to fit the K series engine side. The hoses are made with a thick high temp rated silicone and 3 ply for excellent reliability. If you want to keep the heater control valve installed, simply splice it in location on the hose leading to the cylinder head and youre done.