If you want to use your HICAS hard-lines (10mm) for fuel lines in your R32GT-R, then you will need these adapters. Line will need to be cut to slide the adapters on, then tighten the fitting and it's good to go (no flaring required). They will allow you to connect a AN6 or AN8 fitting to the hardline. Price is per adapter, so be sure to add the correct quantity on checkout!
We also stock the 8mm fittings to turn the factory fuel lines into a AN6 fitting.