Hey mate I ran a 3" pipe from the standard ht18 gu turbo to a wrx front mount intercooler so that pipe is the cold side ic going into the inlet manifold.
Was tricky running that size pipe but if you go back through the pages you'll see the build.
Runs really well for a little turbo mate. I decided to set it all up for a bigger turbo one day when money permits.
No cruise control mate.
Yeah mines a 90 and picked it up back then with 210k I think and still only 235k, not the daily driver of course ;)
My deep cycle has carked it so now considering putting a new deep cycle in the rear as I already have 2 b&s cable to the rear and run a decent Donaldson filter or something bigger for when I upgrade the turbo.
Never lets me down mate, love it!!