K-Tuned K20 RWD Upper Coolant HousingWhen putting a K20 into a RWD vehicle the housing typically points towards the firewall. This housing is designed for the fitting to come straight off the head. It uses a 16AN port with options 1. 25" silicone fitting and16AN fittings. You can easily create a custom setups. We include the fittings needed to retain the factory recirculation line. All hardware and plugs are included. The K Tuned Upper Coolant Housing will compliment our Swivel Neck