new and need help :(((

[-mrblack-]

hi new today can anyone tell me were i can get some info on why my 00 uk turbo stalls when i give her socks) and dump clutch and brake. i thought of it being the idal control valve so cleaned and reused but still happens

car details
3in ss from turbo to rear box
uprated fuel pump
forester sti turbo
uprated plugs and injectors
mapped to 320bhp

this only happened since i took her on the tack so dont realy know what has happened )
i have had my baby for 4 years and all mods happened in my first year when money was easy lol)
if anyone could help please feel free lol

[-mrblack-]

could it be vacum hoses??

[SD_GR]

Is the idle erratic? Look for vacuum leaks etc., that's where I'd start. You're sure you're getting fuel OK?