People ave so many diferent opinions, mine would be to tune your 1.6 but if your looking for a relyable 220 to 240 i would say a zvh, or full blown zetec,

On your 1.6 the obvious things are chip, exhaust, cam, pulley, big inter cooler, hybrid turbo, fifth injector, this should see about 200 bhp, if you have a decent engine already