The follwoing is a list of piggybacks/ other ecus for who would like to tune the Punto mk2 8v

Greddy Emanage - http://www.greddy.com/ - make sure you get the ignition harness

SMT - http://perfectpower.canspeed.com/smt6.htm - download the application pdf to get the settings

Unichip - http://www.dastek.co.za/ - do not have any info on this

Megasquirt - http://www.megasquirt.info/ - standalone DIY ecu, look for MS2 (has ignition control)

Or else, you could tried the following all at once on the same system

ERL MF2 - http://www.dpmotorsport.com/parts/erl/mf2.htm - to use 1 extra fuel injector

J&S safegaurd - http://www.jandssafeguard.com/safeguard.html - automatic ignition control using knock sensor - credits go to smokeme

Icon Race - http://www.superchips.co.uk/bikes/indexfr.htm - use instead of J&S safegaurd - ignition controller

Apexi AFC - http://www.apexi-usa.com/product_electronics_detail.asp?id=225&pageNum=1 - to smoothen the fuel curve and at the same time to clamp to map sensor in the case of forced induction otherwise the ecu will throw on the light

Fuel adjuster - http://autospeed.drive.com.au/A_2418/cms/article.html - DIY cheap alternative to Apexi

I didn't mention standalone ecus (apart from megasquirt) due to their expensive costs.