oil feed and return kit

can anyone help me out and give me all the info i need to make a turbo feed and return line kit in uk sizes...
im asking most people about -3an lines + other US threads and lines and no one knows what im going on about hahaha
anyone who has this info, i would be very very grateful if you could share your knowledge with me.
thanks
greg
im asking most people about -3an lines + other US threads and lines and no one knows what im going on about hahaha
anyone who has this info, i would be very very grateful if you could share your knowledge with me.
thanks
greg