This Adapter was engineered to fit directly into the factory coolant setup. This male -4 AN adapter is inserted in place of the the factory throttle body coolant return line. As such this adapter will delete your throttle body coolant return lines, and will requre this system be disabled. This adapter can also be used as a plug for this coolant hose by using an a Female -4AN Plug.
For those with water cooled turbo setups, this adapter can be used to route your turbo coolant drain or wastegate coolant drains back into your factory cooling system. This will required disabling of the throttle body heater.
For coolant feed adapters- we also sell an adapter from the cylinder head to throttle body coolant feed line that can be used for you turbo coolant feed or wastegate coolant feed line.