Assuming your car is an 03 sti then standard engine will cope fine with 400. so its basic bolt on bits
Turbo (sc42 or similar)
BIgger injectors (700's)
Cold air induction kit (wing mounted)
Full decat
Headers
up pipe
front mount
possibly a oil cooler kit (thermosticly controlled), heat may be an issue
3 port boost solenoid
and personaly i would go aftermarket ecu, alcatek or syvecs is best option but ain't cheap.
to anwer your question, yes you will need a bigger turbo, v35 wont run 400.
Tip to save some money for folks.
Unlike other cars, subaru water pumps are pretty bullet proof. It isn;t a service item and if its not broke just leave it be. Seems to be few people talkign about replacing it when they do a cambelt. Its not required to be replaced and not a service item
The one in my old classic was at least 10 years old and would be even older if the new owner didnt roll it and kill it.
CUrrent car looks to hve origional wter pump still and its 17 years and 105,000 miles old.
Save yer money peeps. leave it be :)
Todays rant,
Fookin Hayfever. What fooking prick though this up? sneezing instead of breathing, nose running like a 8000 diameter pipe and eyes like sandpaper.
*****!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
As above,little to no point. Gonna be a big expence for very poor gains compared with a wrx.
Best bet wait, get another year of no claims + save the difference and then look into it.
I;ve got canal boat hire and garden shed sales hahaha
I was looking at french canal boats hols and sheds, so question is, what were you looking at to get that???????
hahahaha
yet to see any console have multiple 1000 player space ship fleets fighting it out,,,,,,,,,,,,,,
hahahaha
back onto topic.
Im a bit disapointed you can;t set up a car theft empire, cant even sell stolen cars :(
read above, mine still looks pretty good and doesnt sutter at mid settings and 1920x1080 :)
I do have a SSD as well though, but it isnt installed on that