Tidgy

welcome, they are rather adcitive 😄

just bite the bullet and get it rebuilt, the 2.5 in stock form is a bit of a lemon and you could swap it and it fail 2 weeks later again.

oof, what happened? the sti 6 speed is a propper monster strength wise, seen plenty running well over 600

Could be it was, they do get alot of heat on them so can be damaged when removed.

Depends what your plans are, be aware the 2.5 isnt the most robust engine so you will only be able to ahcieve 300 ish before your pushing the limit. A turbo from an sti (non twin scroll) will be a nice upgrade, but bear in mind above and you may need supporting mods, plus it will need mapping for the turbo.

Was it a like for like swap? COuld be the maf or could be something else, need to plug in and see what the EML is

US version here http://www.sucross.com/

ah, explains the issue then. hmm

is it a uk or import?

impreza is no more in the uk 😞 in america they even released an S209. In fact subaru models in the UK are pretty poor, no more manual gearbox and im not even sure they do any turbo charged cars any more, tis a sorry state of affairs 😞 Add in the success subaru US are having in rally and rallycross and i suspect they will only get bigger over there.

subaru US are much more interested in the owners, Subaru UK have basicly destroyed a fanatical following of the brand. They are more bothered about sponsering horse trials and golf tourneys now rather than motorsport 😞

dunno if this helps, https://ebcbrakesdirect.com/automotive/subaru/xv/2-2012-2017/12704

that helps dunnit. i swear subaru UK are useless

very strange, what does your owners manual say about what size they should be?

eurocarparts should be right if you put your reg in?