Pulled off a 2013 Stryker with ~12k miles, I decided to go with just Ivan's flash alone.
This tuner is an "autotuner" but also uses the bluetooth app for adjustments if you wish.
For some reason, the settings sometimes would not save in my phone the few times I attempted adjustments, may have been a phone issue I did not attempt anything with other devices. YMMV.
I'm in the DE / MD area, make me a fair offer thanks!