Just got this gadget from the US: http://www.obdpros.com/product_info.php?products_id=133
Comes with 4 different softwares for reading the codes.
Install is a mere 10 seconds as the connector is located near your right/left knee at the driving side. No need to unscrew anything.
Might not even make it permanent to use it for other cars.
Cheapest software I found to give you your own dynometer is http://www.myscantool.com/details.html