Car has 124k miles(new short block by Subie dealership of Florida @79k), New timing belt at 88k...  lots of detail in Carfax of work at dealerships..

the car  seems to have : Nvidia full Turbo back exhaust, Grimmspeed intake, Grimmspeed 3 port boost controller, Grimmspeed TMIC, Some knockoff BOV, ??? large non-oem radiator, Raceland coilovers, ??? aftermarket clutch that feels very heavy,  Unknown tune.... 

car was driven only 4k in country in 2 years but previous owner installed the BOV in March 🙄 Perrin BPV en route. 

Car is currently parked waiting on a Cobb accessport as when testing it for a week any spirited driving caused misfire codes, too lean codes, has a slightly rough idle now.... 

No oil consumption detected/leaks, also stock Turbo has no shaft play/leaks... it has <80k miles I believe. 

 STFT and LTFT numbers strongly suggested a vacuum leak somewhere... 

found small hole in oem turbo charge pipe(new Perrin on the way).  Various vacuum leaks happened from hoses popping off or were loose...  bulk hose msterial ordered. 

replacing/securing hoses etc and will do a smoke test before any more spirited driving. 

I'll install the new Perrin Charge pipe,  Perrin BPV and a few "longevity mods"(AOS, Oil p/u and baffles(no flat straight roads like Florida here!)

Soooo then will use the Cobb accessport to check tune a

I have one step colder Cobb spark plugs, mishimoto coils, oem pcv valve, cylinder 4 cooling mod all coming with the AOS. Also TMIC bracket was broken and no factory splitte nor Grimmspeed splitter insert!(both en route now)... I figured the above was a no brainer considering the mileage.... and monitor engine(better than my Launch scanner?). 

**I'm looking for suggestions on no brainer fuel system/intake system supporting mods/no brainer fixes while I am doing all of the above and any further advice. This is my first WRX and a 20 year old dream come true finally. I'm in this for the long haul!**

Just bought a modded 2014 WRX Hatch in Nicaragua :