Hi i want to find out what mods to bring up the power on my 03 wrx sti scooby i am running at 293bhp at the mo but i want to get up in the high 300s (more close to 400bhp) but can i do this with my original eng internals
cheers

 

A common turbo that others are using to get to these sort of figures easily seems to be the MD321 'H', 'T' and 'V' variants (with all suitable supporting mods of course). See the recent below thread - specifically posts # 14, # 19 and # 30-32 - for an idea of what you'd need to do, etc...

https://www.scoobynet.com/general-te...re-please.html

 

as your sti got ppp ?
if not just got for a remap ,,you should see 350 ish bhp

stu

 

yhea its got a ppp pack on already i have been offered a re-map at dyno deamon in neston top place to go might look into that

 

Change your turbo, bigger injectors and an uprated fuel pump and new downpipe that should see you near 400bhp once mapped that is

 

my 03 sti spec is
20g AFP turbo, gruppe s headers, uppipe, 3" full decat exhaust, FPR, inner wing k&n induction.
standard top mount, injectors & internals
running 380bhp / 365lbs torque

engine internals are safe up to 400bhp
alot of peeps will take it slightly above 400 and still be okay