So this is my first question for the forum. I recently bought a 2007 Ducati monster S4RS that had been stolen previously and bought at an auction once recovered. The previous owner had to get a new speedometer, ignition switch, keys, and ecu because the thieves broke the original ignition switch. The problem is the speedometer reads kilometers instead of miles. I have read through the forum and found that there is no way to change without getting a new speedometer. The original speedometer is beat up so I don’t want to even attempt to pair it. I have my eye on a 2006 ecu, speedometer, keys, and switches. My question is will this cause any issues running an 06 setup in a 07? Also any difference between Japanese, UK, and US ecus?