1/ Acquired knowledge is usually the option for choosing your upgrades. i.e., w/the stock turbo/engine combo, learn to increase hp by addons, k&n air filter, maybe better flowing exhaust, f/p & hot-wire kit. Learn to adjust the tps, iac, etc. read spark plugs, adj. fuel pressure, etc. then graduate to tt-chip and learn to adj. timing and fueling for no nock ---<snip>--- The stock turbo should last at least 50k miles. Clean oil and proper cool-down will extend the life a lot.