Master-Tech OBD2 Workstations

Fun Fact: In the early 2010s, a surprising number of car enthusiasts and shady used-car flippers started using cheap OBD2 scanners not just to diagnose issues, but to "reset" or "clean" the odometer reading on vehicles — a practice known as "clocking" or "odometer tampering." Before stricter anti-tampering laws and more secure ECUs rolled out, a $20 Bluetooth OBD2 dongle paired with a phone app could often roll back mileage by tens of thousands of miles in minutes, making beat-up cars look like low-mileage gems. A 2012–2015 investigation by the U.S. Department of Transportation and several state DMVs uncovered that hundreds of thousands of used cars sold online had been clocked using OBD2 tools, costing buyers millions. The funniest part? Some of these guys bragged about it on forums like Reddit's r/Justrolledintotheshop and eBay seller groups — calling it "free value add" — until they got caught and faced felony charges. Modern OBD2 systems (post-2018) are much harder to tamper with, but the old-school "scanner hustle" is still a dark legend in used-car circles.