So I’m looking to put some upgrades on my g but idk what I should Do first or where to start and I am gonna want to tune it to

 

I'm guessing you're talking about ENGINE upgrades yeah? 5AT or 6MT?

5AT it's 5/16 plenum spacer - coupe mid-pipe - HFC/test pipes if you don't mind louder - Uprev tune.

6MT it's 5/16 plenum spacer plus MREV2 lower plenum (gotta do both at the same time) - then all the other ones in the same order.