I'm running standard shocks and springs on my MY00 UK Turbo. Just by switching to the springs from a V6 STi, how much of a drop can I expect? I'd hope for about 25mm.

 

With the black eibach sti springs off a V6 sti you should see about 20 -25 mm drop in ride height. I have the blue eibach prodrive springs + shocks on my car,which lowered mine by about 40 mm

 

im running the blue eibach prodrive springs also - if a picture helps the OP visualise the drop...
https://www.scoobynet.com/album.php?...ictureid=19437

 

20-25mm is the biggest drop I'm looking for because of potential roll center issues, plus I'm already running 18" wheels. I've just ordered at set of the black Eibach V6 STi springs from a trader on here - hopefully the ride won't be too stiff now.

Cheers both.

 

If you are running 18's then you may have issues with rubbing on the rears (depends on the tyres/size you run also), so the more you drop, the greater the chance it will rub.
The standard MY99/00 shocks/springs are not that bad on their own, the eibachs are a decent move, 10mm will make a big difference believe it or not

Tony