My eclipse has the 420a engine in it and cat back exhaust. i would like to turbo it in the future but do not really know much about turboing it and what i would need to build to get as much power as possible. This is my first tuner and i know people are going to say dont waste your time with the 420 its crap blah blah blah but i would like to build it so i can build more of knowledge on working with engines and such so that when i get something faster like a 4g63 that i somewhat know what i need to do to unload power and such. if anyone could help me with a build plan on what i need to do that would be awesome