You should change the water pump when changing the timing belt for convenience. Subaru recommended timing belt change interval at 105k miles. Here a link for DIY: http://www.iwsti.com/forums/how-install/154977-04-sti-timing-belt-change.html I wouldn't recommend DIY for noob since the work is quite extensive. I just let it to the pro for my timing belt change, although I didn't change my water pump at the time for the lack of money.
STI stands for Subaru Tecnica International. For years the acronym was STi but then it was changed to all caps, STI. In addition to supplying racing engines for Subaru rally cars, STI markets performance parts for use in many Subaru vehicles. See link below for STI HQ.
Subaru Impreza WRX STI was created in 1992.
As far as I know you can not get a subaru legacy sti from the factory bu you could get an sti engine and put it in a legacy. That is the only way that I know of.
The Subaru Impreza STI can be test-driven at your local Subaru dealership. Call your local Subaru dealer for more information.
yes, the WRX and STI are both turbocharged.
Subaru Impreza GT (2009) Subaru Impreza WRX Subaru Impreza WRX STI
There are many places where one can find a Subaru STI for sale. One being any car dealership that sells Subaru's. Another is Autotrader, motortrend or eBay.
A 2004 Subaru Impreza WRX STI, which is the top of the line Impreza from Subaru.
Subaru Wrx Sti
Subaru impreza wrx sti
Blue or black
2800lb.