New owner of Lusso with auto. Been reading this forum and learning alot. Maybe interested in "tuning" this summer. What are my options? The best I understand it is that I can replace the ECU, add a piggyback unit and change the program on the existing ECU by flashing it through the OBD. Is this right? Looking for the easiest not necessarily the cheapest. Also since I'm leasing the car I want to be sure I can turn it in at lease end without any problems. Thanks guys for any and all feedback.