[skov]

Hi David,

As far as I know the MX5 brake lines are 3/16" with M10x1mm fittings (same as Ford),
and the MX5 fuel lines are 8mm, so best go for that.
For the fuel line I think most people use microbore copper pipe from the likes of B&Q:

http://www.diy.com/diy/jsp/bq/nav.jsp?action=detail&fh_secondid=9264633&fh_locat ion=//catalog01/en_GB/categories%3C{9372015}/categories%3C{9372046}/categories%3C{9372180}/specificationsProductType=copper_pipes/specificationsSpecificProductType=soft_coil_tubing