hey guys i need banjo fitting for big 16g, i know summit has some banjo fitting but i don't know what size do i need, does anyone know what size is it, thx

it should be the same as on the GST. check this link.

http://www.roadraceengineering.com/2g16ginstallkit.htm
go to the bottom of the page and scroll up till you see the blue box that says OIL SUPPLY

dsm/mitsubishi service manuals https://www.mediafire.com/folder/5k14qlaulb9s1/dsm_mitsubishi

service manuals(my whole collection) https://www.mediafire.com/folder/ac51jwwa3g1n1/automotive_manuals