Hey all! Just installed Rubicon wheels and tires on my 2020 Sport S. Now my mpg has dropped a good bit and my speedometer is 1-2 mph off according to a GPS speedometer app (tested before installing the tires and it matched up). I was wondering if I could get some pointers here. I've heard of people using a tuner to adjust the speedometer and tire size, but not sure which one I should get. Just the Tazer JL mini? I've also heard of people getting a Bluetooth ODB II reader in with a bypass cable and using an app called JScan on their phone to adjust stuff. What do you guys suggest? And will it affect my gas mileage at all when I adjust this stuff or is it just part of getting the bigger tires? I know they're not that much bigger than stock Sport S tires...should it have affected it that much? I'm talking 4-6mpg. Been trying to drive like a grandma even more since installing the wheels/tires and it hasn't helped. Thanks in advance for any help!