So I just put my new wheels and tires on after installing some Pro Comp 2.25" spacers in the strut towers. While I was having it re-aligned, I asked about recalibrating the speedometer, as it is now 5 off due to the increased tire/wheel size. He said I would be better off investing in a power programmer and could change the wheel size in the computer as well as tweak it for mileage, towing, etc. After looking around I'm not finding much more than monitors that just show you additional properties. I'm also not finding much for Tacomas. Just wondering if anyone here has found one or knows what would work. I have a 13 Tacoma PreRunner V6 (2WD w/ Locking Differential).