K- Swap Driver Side Radiator Hose Kit W/ Fan Hose Bung K20 EG EK DC2 CRX Si 🇺🇸K Swap Driver Side Radiator Hose Kit W Fan Hose Bung K20 EG EK DC2 CRX Si Our MadDogPerformance lower hose has been redesigned with a built in port to hold an optional bung for an OEM rad fan switch. This optional port was added so that you no longer need to cut into the hose to install a bulky and ugly aluminum adapter. If you don't plan to use a fan switch in the hose location, the included plug will seal the port easily. The plug can also be