Ultimately the car was built and tuned quite well from the factory so there are no huge gains to be made from easy work. You can absolutely go FI but you're looking at forged pistons/rods && potentially a better trans as well (I don't believe the oem trans is rated for the torque a 3.8 turbo would produce)My friend seems bound and determined to get one of these cars(hit his fancy I guess). He likes my car (not hyundai) and has helped me build mine. Now he has an itch for a car to build. I read the build plan/guide and see what little he can expect to get... Im gonna have to make him read this if he wants a car that you can work on and notice small differences. The gains you listed are what I got from a 100$ canned flash (mhd app stage 1+) for my car bumped me to 360 wheel hp(yay turbo's). I cant imagine putting that much work in for small gains. Its about the same work i have put into my car FBO and stage 2+custom tune. Dont get me wrong I enjoyed reading the build and congrat you for steering other members in the right direction to make REAL gains. Personally want to feel a reward for my work. Hopefully I find an as well written guide to forced induction builds on these cars.
Ultimately it's not the best platform from a mods/tuning perspective, just my 2c