I would like some insight from others who may have gone this route or similar. First off let me say that I'm not concerned with big power output. I plan on sticking with my stock turbo, or maybe a vf34 at most. Not looking to go higher then 17ish psi. My goals are to make my car as efficient as possible. Being able to get the power to the wheels is far more important to me as is torque over peak hp. So with that, here are some ideas I've been throwing around. These are listed in the order I plan to do them. ? next to it means I'm not sure if it's relevant to my goals.
GS up pipe (on the way)
Cobb AP (on the way)
GS x pipe
PnP exhaust manifold (will do myself)
Trying to get these done at same time so I don't have to take it apart again later.
PnP turbo w/ceramic coat ( will also run heat shield)
STi cat back
STi TMIC w/GS Y pipe
PnP intake manifold w/ceramic coating
8mm Phenolic spacers
TGV delete? Or at least getting them coated
Large core radiator?
PnP throttle body?
Beyond this the majority of work will be to the drivetrain and suspension to get the power to the wheels. I will eventually be using protunes set for maximizing torque. It will be a DD and auto x with the occasional track day.
Any advice on this? Remember my goal is efficiency and torque not max hp.