You should buy quality parts and research into things before you buy them!
Let other people make the mistakes so you can learn from them!
I'd go with any good hfc's(idk which is best gains for g37), fast intentions cbe w/ 18'' res. CF, stillen gen 3 long tube intakes, cobb access port.
And then start doing little things like lightweight pulley, camber arms, etc...
btw... Ahn young ha se yo!

 

sooo where you from?