What's the difference in the $500 one: http://www.diablosport.com/shop/intune-i2-pcm-swap-dodge-v8-car-2015-2016.html
and the $900 one: http://www.diablosport.com/shop/products/modified-pcm-intune-i2-combo-2017-5-7l-6-4l-charger.html

Does the $500 one not come with the PCM my 2017 charger needs ...