Well, here is what Hypertech actually states on their product page:
"This module is perfect for vehicles with computers that don't allow for tire and gear ratio correction"--see attached screenshot below.
We are driving a vehicle that does allow for tire and gear ratio correction via FORScan.
It is perfectly fine if you want to get a Hypertech device to correct for tire size change. Keep in mind that the inline calibrator from Hypertech requires you to disassemble your dash to put the thing in (
http://www.hypertech-inc.com/ProductManuals/inlinespeedo/730125_VSS_Instlltn_Prcdr.pdf). A lot more invasive and difficult than using FORScan.
By the way, I am more than double the age of the internet, and I think
@wreedsvt is as well, so neither of us are new to the internet, we are just suggesting another and lower cost option of correcting for tire size change. Now you can do what you want with this information, and make your own informed decision on the approach you want to take.
The members of this forum are all very supportive to one another in providing knowledge sharing and assistance, and we understand that people will select different options based on what their personal preference is. For example, with disabling Auto Stop-Start (ASS), some guys prefer to take apart their dash and install an inline unit such as
https://www.autostopeliminator.com, others disable via FORScan, and others like wreedsvt disconnect the BMS cable under the hood--all three options disable ASS, but in this case the inline solution still retains the on the fly enablement of ASS in case you're in situational driving where it would be beneficial to have it enabled--so the inline option provides more feature capability over the other two options. In the case of Hypertech vs. FORScan, I am not aware of any benefits the Hypertech unit provides over FORScan and comes with the risk of damaging dash components with the disassembly and reassembly of the dash to perform the install.
@yokev -- report back on how your Hypertech install and configure goes so that others can benefit and learn from your experience--thanks!