Hi I have a 2003 ST2 and I found online at eBay a chip for my ecu which clips out and is easily replaced upgraded for a Ducati Open Pipe or one for racing. The top of my ecu has a large round rubber bung cover which I removed and directly under it is a black chipset which is able to be replaced using a tool not soldered but pressed in to a socket of sorts, check your workshop manual for Changing The Eprom (ST2 are lucky to have this) no reflashing required. I hope this helps it really made a difference to my girl she now has more get up and go without running too lean or hotter. I have Staintune Sport pipes on my girl for reference with the restrictors removed. I just searched eBay under Ducati Eprom and there are some available but I do not know the part no. for the chipset I bought.