Review on Optimize Your Vehicle's Performance with Chip Your Car Stage 3 Performance Chip - Boost Up to 60 HP and Gain 5 MPG by Bill Russett

Seems to work; but I don't understand how that can be? My car is a 2018 Dodge Challenger V6. My understanding is that as of 2017 the ECM or PCM is locked and you need a bypass cable that allows other products to bypass the lock and make adjustments. I have contacted the manufacturer for details on whether I am correct or not, as well as documentation on this. Far from the answer "We have chipped thousands of cars" was the only one I got. It doesn't fill me with confidence. I have asked the company for a refund and so far I have been ignored.