EA82/EA82T improved cooling

Most EA82 body cars, turbo or non, came with a one-row radiator that worked okay when the car was new. If you need a new radiator, or want to improve your cooling capacity, you can get a two-row radiator that will do a much better job. If your parts supplier doesn't list one for your car, ask for a two-row radiator for a 1989 4wd turbo wagon with automatic transmission. That's what I do every time, and I haven't had trouble getting one yet. And yes, ANY EA82 radiator will fit in ANY other EA82 car with no modifications.

The one-row replacement radiator costs around $100 from most suppliers I've dealt with, and the two-row cost around $125. Definitely money well spent, as it may prevent costly cylinder head damage or other big problems down the road.

While I'm on the subject, I should mention thermostats. I've had horrible luck with aftermarket thermostats just not working in Subarus. The one exception is the Stant Superstat model (I think NAPA sells a rebadged version). If you can, just use an OEM thermostat though, as I've never had one of those go bad.