Review on Hypertech 752501 Speedometer 🔧 Calibrator: Maximizing Accuracy and Control by Ryan Judy

The product was easy to install and use, just follow T's instructions. Make sure all accessories are unplugged, doors closed, radio off etc. as instructed. I had to disconnect my winch from the battery and unhook my aftermarket bumper lights, pull out the fuse for the trailer lights, I had to turn off my aftermarket horn. I also had to remove the aftermarket LED headlights for the product to work properly, but other than that it worked great. Once everything is off, follow the on-screen instructions and it did everything I needed to set up my speedo for my new 35s in minutes and I was ready to go.