Gaz said:For the money (and insurance costs) needed to turbocharge your 1.6 scooby, I'd tell you to sell the car, add on your spending money and buy a proper Impreza Turbo. Better handling, more reliable and easier to sell.
If you're after basic tuning for the 1.6 without going as far as turbocharging it, then you need to sort out the breathing first. Remove the CAT, get a bigger throttle body (will one from the 2.0 fit?), get a 4-branch exhaust manifold and a decent exhaust system. After that you need to look at more mechanical work - ie fitting performance cams, getting the head ported/polished, etc. I wouldn't think about getting it chipped until you have everything else done or else the chip won't be optimised to take advantage of these changes.
Gaz
For the money (and insurance costs) needed to turbocharge your 1.6 scooby, I'd tell you to sell the car, add on your spending money and buy a proper Impreza Turbo. Better handling, more reliable and easier to sell.