Hi there, and thanks! I love your profile photo - what a great shot and a great truck! I just installed the JB4 last weekend, so my driving since then has been a bit limited. What I can say is that the truck feels more responsive, and I suspect that there is some performance gain, although, with only 300 miles on it, I haven't pushed it too hard yet. My previous daily driver was a 2013 Supercharged Raptor with the JDM 700 kit on it. Coming from that to the Braptor was quite a change in the performance category. If you haven't seen the Lethal Performance videos on the JB4, there is one where they go through the installation (which was a breeze) and also run it through some unscientific tests in different modes. I think they have now posted some dyno videos, but I am not sure about that. Supposedly, the JB4 and the Whipple MegaCooler combined will make a noticeable difference. I haven't installed the Mega Cooler yet, as I am trying to find out more about the CCM recalibration, which might be a dealer item. Hope this helps!
Wick