I also noticed that the superlift website says K864 comes with the EGR module, is this the case? Websites like Quadratec list the module as a separate part to order.

Ideally I'd like to NOT need the EGR since I already have the flashpaq, so if I can save ~$300 thats the way to go!

And what really throws me through a loop, because I dont fully understand "how" these parts actually change the programming, is what happens if you use the EGR to set the tire size then use the flashpaq to set the tire size? Does one override the other?