I need to know how to differenciate b18c gsr intake, b18c5 (type r) intake,b16 type r and non type r intake pls post some pics and pls let me know which one is best for b18c turbo charged and the reason y.

Currently i am thinking to custom made one aluminum intake and i am only boosting around 1- 1.3 bar shd i considered or not?

PLs let me know which one is the best
1)aluminum custom
2)b18c gsr
3)b18c type r
4)b16
5)b16 type r