AlfaOBD - Change your Tire Size to Correct Your Speedo on your RAM!!

With the Carli 3.25" lift, I'm now running 37x12.5 R20 Falken Wildpeak AT3Ws! This means my speedometer was showing a lower speed than I was actually going. You can fix this with Alfa OBD which is an easy to download program and only costs $50. Links to the program, the security bypass module and OBD to USB connector are below: Alfa OBD - https://www.alfaobd.com/download.html Security Bypass Module - https://www.kaodtech.com/product-page... OBD Link - https://www.obdlink.com/products/obdl... Tire Size Spreadsheet - DM me on Instagram at Harrisons.Garage and I will email you the excel file 0:12 Intro 1:53 Imputing the Tire Size: 7:55 Alfa ODB: 14:13 Testing Disclaimer: Due to factors beyond the control of Harrison's Garage, I cannot guarantee against improper use or unauthorized modifications of this information. Harrison's Garage assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Harrison's Garage recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Harrison's Garage, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Harrison's Garage.