This tube transfers clutch fluid to and from the Concentric Slave Cylinder used on 07+ HR motors. Although not required, it is highly recommended to replace this tube at the same time as the cylinder assembly.
Nissan 350Z, 370Z
Nissan Z33, Z34
2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017