Here is a copy from dsmtuners, which discusses modifying an eclipse turbo. However, the information is general and true for all cars, most people overlook this:"The first thing you need to do is a complete tune up. Replace all worn belts, including the timing belt and balance shaft belt. If the timing belt/balance shaft belt haven't been replaced within the last 60k miles, or you're not sure when they were last changed - change them now. If they break, you'll be paying for a rebuilt cylinder head (not cheap). You'll also want to change out all filters, fluids, worn hoses, spark plugs/wires, worn/leaking gaskets, check the compression, do a leak-down test, check your ignition timing, etc. Basically, do all of the checks that your repair manual tells you to do - you do have a repair manual already, don't you? If not, pick one up now before moving forward with any modifications."
Then, the parts are similar for what you will want for initial modifications:
http://www.dsmtuners.com/tuning-guid...tage1power.php
What are the best simple upgrades for a toyota mr2?
Linear Mode
