Just a couple of things to note and a couple of clarifications.

Mitsu only used one size turbo stock on the 2.6 - the TD05-12A. There was a dealer installed sport turbo option for a TD05-14G. The 12A had about 365cfm at 15psi of boost, and the 14G had about 460 at 15psi. As a rough and ready rule of thumb, you need 1.5cfm/hp. The 12 is good for about 240hp max, and the 14 is good for about 300hp. I've driven a 14G in an i/c Starion, and the spoolup is indistinguishable from a 12A, which comes in VERY early. There is turbo lag with an m/t, but NO discernable lag with an a/t. It just feels like a good torquey small block coming off the line. The a/t doesn't even downshift on steep freeway grades unless you get all the way into the loud pedal. It cruises at 3400rpm (about 85mph) showing about 1-2psi of boost on the Autometer gauge.

This swap is the MOST bang for your buck with a 2.6, on- or off-road. The only fab is exhaust, which makes it also one of the easiest engine swaps I've ever seen. I'll run 2.5" loud pipes all the way out on my next incarnation, with a hi-flow cat and Magna-Flo straight thru muffler.

The stock Monty 3 row radiator is 50% bigger than the biggest Starion radiator, and handles the cooling just fine. It would probably be more than enough for anything but a full bore small block, since the hp #'s are just about equal, and radiator heat shed requirements are a function of hp.