This will greatly depend on many factors.
Question number 1.. will the Red continue to use the MASS air flow sensor w/out a MAP sensor? Somehow the Red will need to determine the Manifold Pressure to adjust boost pressure as most modern boosted cars do. This would mean the ECU for the Red would need to be completely designed to accept more input/output devices.
Question 2.. will we be able to get our stock ECU to read positive manifold pressure properly w/out the user of a "Black Box??" I turbo'd a 2.0 DOHC na eclipse with a Hann racing kit. The thing was a monster, but impossible to diagnos problems because of the black box. Principally speaking it tricks the ecu into thinking it never has positive manifold pressure and keeps it at approx 0 manifold pressure. The major problem with this is that A/F ratio and Timing needs to adjust depending on boost levels, and doing this doesn't allow that to happen correctly.
Question 3.. how much are you willing to spend. SAFELY you may be able to push 3-6 psi in this car depending on what the internals are made of, but you have to understand that when these aftermarket manufactures "test" their products, it's generally less than 10,000 miles. I don't know about you, but I would hope to have my car run for more than that. I threw a crank bearing after 17,000 on my NT engine, which required another 4,500 dollars worth of engine internals and shop labor. So in short expect to spend 4,000 for the kit, 5,000 for a good built engine, 600 for a new clutch, 1600 for a brake upgrade, and whatever kinda rubber your throwing in the back because it will be more than the stockers can handle.
Question 4.. how addicted are you to speed? Once you get done spending over 10,000 for the above.. well now you can put more boost on the car..and the old 6 lbs of boost can be bumped up to 18 w/the right compression ratio.. which means now u need new injectors, fuel rail, exhaust, fuel pump.... and the neverending spiral of financial pitfall begins.... :thumbs: