calibration

Hi, I'm planning to install a set larger tires but I couldn't find any post in the forum that has anyone successfully calibrated their speedo. Do you think Mazda dealer will be able to help me with this? I also couldn't find any aftermarket tools to do this.

Hello, Does anyone know of any speedometer calibration kit for 2019 cx5? Im planning to get an overall bigger tire and wheel which exceeds 3% threshold (generally agreed) and will definitely mess up the speedometer. I googled around for quite some time but couldn't find any kit that will allow...