my local motor factors managed to get me some nice gauges which can have 7different colours,

i got a boost gauge and oil pressure!, the instructions are ******** so need some help!

boost gauge is easy no probs to fit, its the oil pressure one!

it has the gauge and seperate to that it has some thing that looks like a brass fuel filter in shape with pipes coming off it etc do you know where it goes etc and where i attach it? i havnt a clue nor do the shop?